{"id":19900,"date":"2026-07-24T06:18:21","date_gmt":"2026-07-24T06:18:21","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=19900"},"modified":"2026-07-29T01:50:27","modified_gmt":"2026-07-29T01:50:27","slug":"qsfp-vs-cfp-cfp2-and-cfp4-which-100g-form-factor-wins","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm","title":{"rendered":"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?"},"content":{"rendered":"\n<p>Elena, a network architect in Amsterdam, stared at two 100G line-card options for her new metro router. One slot took a CFP2 module. The other took a QSFP28. Both promised 100 Gbps. The CFP2 faceplate looked enormous next to the QSFP28 cage. She needed the same bandwidth, but she also needed twelve ports per line card, not two. That&#8217;s the moment the real <strong>qsfp vs cfp<\/strong>&nbsp;question hit home.<\/p>\n\n\n\n<p>If you&#8217;re sizing a 100G deployment, you&#8217;ve probably asked the same thing. Should you use CFP, CFP2, CFP4, or QSFP28? The answer depends on reach, power, density, and what your switch hardware actually accepts. This guide breaks down every major 100G form factor so you can pick the right pluggable for the job.<\/p>\n\n\n\n<p><strong>Need 100G transceivers for your next deployment?<\/strong>&nbsp;Explore FiberMall&#8217;s optical transceiver solutions&nbsp;or contact our networking experts&nbsp;for a form-factor review.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/CFP2-VS-QSFP28.png\" alt=\"CFP2 VS QSFP28\" class=\"wp-image-19901\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/CFP2-VS-QSFP28.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/CFP2-VS-QSFP28-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/CFP2-VS-QSFP28-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Quick_Verdict\" >Quick Verdict<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#The_CFP_Form_Factor_Family_CFP_CFP2_and_CFP4\" >The CFP Form Factor Family: CFP, CFP2, and CFP4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#CFP_Gen_1_The_Original_100G_Workhorse\" >CFP (Gen 1): The Original 100G Workhorse<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#CFP2_Half_the_Size_Still_Built_for_Reach\" >CFP2: Half the Size, Still Built for Reach<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#CFP4_The_Data_Center-Friendly_CFP\" >CFP4: The Data Center-Friendly CFP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#What_About_CFP8\" >What About CFP8?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#QSFP_and_QSFP28_The_Density_Play\" >QSFP and QSFP28: The Density Play<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#QSFP_vs_CFP_Side-by-Side_Specifications\" >QSFP vs CFP: Side-by-Side Specifications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Power_Density_and_Rack_Space_in_the_QSFP_vs_CFP_Debate\" >Power, Density, and Rack Space in the QSFP vs CFP Debate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Switch_Port_and_Backward_Compatibility\" >Switch Port and Backward Compatibility<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Reach_and_Application_Fit\" >Reach and Application Fit<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Data_Center_and_DCI_QSFP28_Dominates\" >Data Center and DCI: QSFP28 Dominates<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Metro_and_Long-Haul_CFP2_and_CFP4_Still_Matter\" >Metro and Long-Haul: CFP2 and CFP4 Still Matter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Coherent_CFP2-DCO_vs_QSFP28_DWDM\" >Coherent CFP2-DCO vs QSFP28 DWDM<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Cost_and_TCO_Considerations\" >Cost and TCO Considerations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Decision_Matrix_When_to_Choose_Which_Form_Factor\" >Decision Matrix: When to Choose Which Form Factor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Quick_Recap_QSFP_vs_CFP_Family_Trade-Offs\" >Quick Recap: QSFP vs CFP Family Trade-Offs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#2026_Market_Outlook\" >2026 Market Outlook<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#What_is_the_difference_between_QSFP_and_CFP4\" >What is the difference between QSFP and CFP4?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Is_CFP4_smaller_than_QSFP28\" >Is CFP4 smaller than QSFP28?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Does_CFP_use_more_power_than_QSFP28\" >Does CFP use more power than QSFP28?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#When_would_I_still_choose_CFP2\" >When would I still choose CFP2?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Can_I_plug_a_CFP4_module_into_a_CFP2_port\" >Can I plug a CFP4 module into a CFP2 port?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quick_Verdict\"><\/span><strong>Quick Verdict<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>If you just need the bottom line, here it is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>For data center \/ cloud 100G:<\/strong>\u00a0Choose QSFP28. It&#8217;s the smallest, coolest, and most widely supported option.<\/li>\n\n\n\n<li><strong>For metro or long-haul DWDM:<\/strong>\u00a0Choose CFP2-DCO or CFP4-DCO for integrated coherent reach.<\/li>\n\n\n\n<li><strong>For legacy CFP hardware:<\/strong>\u00a0Use CFP4 as the smallest backward-compatible refresh.<\/li>\n\n\n\n<li><strong>For a 400G\/800G roadmap:<\/strong>\u00a0Start with QSFP28 and move to QSFP-DD on the same switch family.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_CFP_Form_Factor_Family_CFP_CFP2_and_CFP4\"><\/span><strong>The CFP Form Factor Family: CFP, CFP2, and CFP4<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>CFP stands for &#8220;C Form-factor Pluggable.&#8221; The CFP MSA family was designed to carry 100G Ethernet and OTU4 traffic in a hot-pluggable module. Each generation shrinks the package and cuts power.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CFP_Gen_1_The_Original_100G_Workhorse\"><\/span><strong>CFP (Gen 1): The Original 100G Workhorse<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The first-generation CFP is big. Really big. Typical dimensions run about 144.75 \u00d7 82 \u00d7 13.6 mm. It was built early in the 100G era, when optics and DSPs needed more board area and more thermal headroom.<\/p>\n\n\n\n<p>CFP supports 100G through 10 \u00d7 10 Gbps electrical lanes or 4 \u00d7 25 Gbps lanes. Power consumption can reach 24 W, and sometimes higher in early coherent variants. That size and power made CFP popular in telecom backbones and metro networks where reach mattered more than port count.<\/p>\n\n\n\n<p>Today, CFP is largely legacy. You&#8217;ll still see it in carrier transport gear, but most new data center hardware has moved on.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CFP2_Half_the_Size_Still_Built_for_Reach\"><\/span><strong>CFP2: Half the Size, Still Built for Reach<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>CFP2 cuts the first-generation footprint roughly in half, down to about 107.5 \u00d7 41.5 \u00d7 12.4 mm. Power drops to a typical 12 W, though high-performance coherent CFP2-DCO modules can climb toward 18\u201324 W.<\/p>\n\n\n\n<p>The module keeps the long-haul and metro focus. It supports 4 \u00d7 25 Gbps or 8 \u00d7 25 Gbps electrical interfaces, and it&#8217;s the form factor of choice for many coherent 100G deployments. CFP2-ACO and CFP2-DCO variants integrate the optics and DSP needed for DWDM transport.<\/p>\n\n\n\n<p>For a deep dive into the QSFP side of the same 100G conversation, see FiberMall&#8217;s QSFP28 transceiver guide.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CFP4_The_Data_Center-Friendly_CFP\"><\/span><strong>CFP4: The Data Center-Friendly CFP<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>CFP4 shrinks again to roughly 92 \u00d7 21.5 \u00d7 9.5 mm, about one-quarter the size of the original CFP. Typical power falls to around 6 W, making it the most efficient member of the CFP family.<\/p>\n\n\n\n<p>It uses 4 \u00d7 25 Gbps lanes, just like QSFP28. That makes CFP4 attractive for high-density data center interconnect and operator networks that still need a CFP-style ecosystem. Still, a CFP4 module is roughly 66% larger than a QSFP28. Port density favors QSFP28.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/The-CFP-Form-Factor-Family.png\" alt=\"The CFP Form Factor Family\" class=\"wp-image-19902\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/The-CFP-Form-Factor-Family.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/The-CFP-Form-Factor-Family-300x200.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/The-CFP-Form-Factor-Family-768x512.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_About_CFP8\"><\/span><strong>What About CFP8?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>CFP8 is the 400G member of the family. It&#8217;s larger than CFP4 again, roughly 107.5 \u00d7 41.5 \u00d7 12.4 mm, and it draws 15\u201320 W. CFP8 carries 16\u00d725G or 8\u00d750G electrical lanes.<\/p>\n\n\n\n<p>It never achieved the same traction as QSFP-DD or OSFP in data centers, but you may still see it in some carrier transport platforms. For new 400G builds, QSFP-DD is almost always the better fit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"QSFP_and_QSFP28_The_Density_Play\"><\/span><strong>QSFP and QSFP28: The Density Play<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-transceiver-guide.htm\" target=\"_blank\" rel=\"noreferrer noopener\">QSFP stands for Quad Small Form-factor Pluggable<\/a>. The &#8220;quad&#8221; refers to four transmit\/receive channels.<\/p>\n\n\n\n<p>QSFP+ carries 40G over four 10 Gbps lanes. QSFP28 carries 100G over four 25 Gbps lanes. A QSFP28 module measures roughly 72.5 \u00d7 18.35 \u00d7 8.5 mm and typically draws 3.5 W. Switches can pack 36 QSFP28 ports into a single 1RU device.<\/p>\n\n\n\n<p>That&#8217;s why QSFP28 became the default 100G form factor for data centers, cloud networks, and AI clusters. It also keeps a path forward through <a href=\"https:\/\/www.fibermall.com\/store-20656-400g-qsfp-dd.htm\" target=\"_blank\" rel=\"noreferrer noopener\">QSFP-DD for 400G<\/a> and 800G. FiberMall covers that migration in the QSFP-DD vs QSFP28 vs OSFP comparison.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"QSFP_vs_CFP_Side-by-Side_Specifications\"><\/span><strong>QSFP vs CFP: Side-by-Side Specifications<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Form Factor<\/strong><\/td><td><strong>Typical Dimensions (L \u00d7 W \u00d7 H)<\/strong><\/td><td><strong>Electrical Lanes<\/strong><\/td><td><strong>Typical Power<\/strong><\/td><td><strong>Pin Count<\/strong><\/td><td><strong>Best Use Case<\/strong><\/td><\/tr><tr><td>CFP<\/td><td>~144.8 \u00d7 82 \u00d7 13.6 mm<\/td><td>10\u00d710G or 4\u00d725G<\/td><td>up to ~24 W<\/td><td>148<\/td><td>Legacy long-haul \/ metro<\/td><\/tr><tr><td>CFP2<\/td><td>~107.5 \u00d7 41.5 \u00d7 12.4 mm<\/td><td>4\u00d725G, 8\u00d725G, 8\u00d750G<\/td><td>~12 W<\/td><td>104<\/td><td>Metro \/ coherent 100G<\/td><\/tr><tr><td>CFP4<\/td><td>~92 \u00d7 21.5 \u00d7 9.5 mm<\/td><td>4\u00d725G<\/td><td>~6 W<\/td><td>56<\/td><td>High-density DCI \/ operator<\/td><\/tr><tr><td>QSFP28<\/td><td>~72.5 \u00d7 18.35 \u00d7 8.5 mm<\/td><td>4\u00d725G<\/td><td>~3.5 W<\/td><td>38<\/td><td>Data center \/ cloud 100G<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The table tells the story. Each CFP generation gets smaller and more efficient. QSFP28 is smaller and more efficient still.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Power_Density_and_Rack_Space_in_the_QSFP_vs_CFP_Debate\"><\/span><strong>Power, Density, and Rack Space in the QSFP vs CFP Debate<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The <strong>100G CFP vs QSFP28<\/strong>&nbsp;power story is easiest to see in a real rack.<\/p>\n\n\n\n<p>Tom, a data center engineer in Dallas, had to double fabric capacity in the same rack. His existing switches used QSFP28. A rival proposal suggested CFP2-based gear for &#8220;better optics.&#8221; Tom ran the numbers.<\/p>\n\n\n\n<p>A 36-port QSFP28 switch drew roughly 126 W in optics at 3.5 W per module. A 12-port CFP2 switch drew 144 W in optics at 12 W per module. The QSFP28 option delivered three times the bandwidth in the same rack space and used less total power. The CFP2 proposal never made it past the whiteboard.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Power-Density-and-Rack-Space.png\" alt=\"Power, Density, and Rack Space\" class=\"wp-image-19903\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Power-Density-and-Rack-Space.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Power-Density-and-Rack-Space-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Power-Density-and-Rack-Space-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>That example isn&#8217;t a knock on CFP2. It&#8217;s simply a different tool. CFP2-DCO coherent modules can reach thousands of kilometers. QSFP28 can&#8217;t do that without specialized DWDM or ZR variants. Density and reach are the real trade-offs in the <strong>qsfp vs cfp<\/strong>&nbsp;debate.<\/p>\n\n\n\n<p>For more on power efficiency across form factors, read FiberMall&#8217;s <a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-power-consumption-per-gigabit-40g-800g-guide.htm\" target=\"_blank\"><u>QSFP power consumption per gigabit guide.<\/u><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Switch_Port_and_Backward_Compatibility\"><\/span><strong>Switch Port and Backward Compatibility<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Form-factor choice isn&#8217;t only about specs. It&#8217;s also about what your hardware already accepts. A QSFP28 module won&#8217;t fit a CFP2 cage, and a CFP4 module won&#8217;t mate with a CFP slot. Before you order, check these points:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cage\/keying:<\/strong>\u00a0Each form factor has a unique mechanical key and latch position. CFP and CFP2 use a wider, two-piece housing. CFP4 and QSFP28 look similar from the front but have different width and latch geometry.<\/li>\n\n\n\n<li><strong>Electrical interface:<\/strong>\u00a0CFP Gen 1 supports 10\u00d710G or 4\u00d725G. CFP2 adds 8\u00d725G and 8\u00d750G options. QSFP28 is strictly 4\u00d725G. Make sure your host ASIC lane map matches the module.<\/li>\n\n\n\n<li><strong>Power budget:<\/strong>\u00a0A 24 W CFP2-DCO may exceed the capability of a switch designed for standard 12 W CFP2 modules. Check per-port power limits in the hardware datasheet.<\/li>\n\n\n\n<li><strong>Management interface:<\/strong>\u00a0CFP modules use MDIO-based management. QSFP28 uses the two-wire serial interface defined by SFF-8436\/SFF-8636. See FiberMall&#8217;s <a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-pinout-msa-sff-8436-38-pin-guide.htm\" target=\"_blank\"><u>QSFP pinout and MSA electrical interface guide<\/u><\/a>\u00a0for the exact pinout. Your switch firmware must speak the right protocol.<\/li>\n\n\n\n<li><strong>Thermal design:<\/strong>\u00a0Denser modules need better airflow. A 1RU switch filled with 24 W CFP2-DCO modules has very different cooling needs than one filled with 3.5 W QSFP28 modules.<\/li>\n<\/ul>\n\n\n\n<p>If you&#8217;re refreshing existing gear, the fastest path is usually to match the form factor already in the chassis. If you&#8217;re designing a new rack, QSFP28 gives you the widest choice of switches.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Reach_and_Application_Fit\"><\/span><strong>Reach and Application Fit<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Data_Center_and_DCI_QSFP28_Dominates\"><\/span><strong>Data Center and DCI: QSFP28 Dominates<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Inside the data center, links are short. Top-of-rack to leaf, leaf to spine, and spine to core rarely exceed 10 km. QSFP28 SR4, LR4, and CWDM4 variants cover these distances at low power and high density.<\/p>\n\n\n\n<p>Cloud providers and AI clusters also prefer QSFP28 because the same switch family scales to QSFP-DD for 400G. Consistent form-factor roadmaps reduce hardware churn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Metro_and_Long-Haul_CFP2_and_CFP4_Still_Matter\"><\/span><strong>Metro and Long-Haul: CFP2 and CFP4 Still Matter<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>When traffic leaves the data center and rides a DWDM network, coherent optics become necessary.<a href=\"https:\/\/www.fibermall.com\/sale-459576-100g-cfp2-zr4-80km.htm\" target=\"_blank\" rel=\"noreferrer noopener\"> CFP2-DCO <\/a>and CFP4 modules integrate the DSP and tunable laser needed for 80 km, 200 km, and even transcontinental links.<\/p>\n\n\n\n<p>CFP2-DCO modules typically draw 15\u201325 W. That sounds high compared with QSFP28, but they replace much larger transport cards. A single CFP2-DCO can do the work of a line card that once consumed hundreds of watts.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Coherent_CFP2-DCO_vs_QSFP28_DWDM\"><\/span><strong>Coherent CFP2-DCO vs QSFP28 DWDM<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>QSFP28 does have DWDM options. O-band DWDM QSFP28 modules can run under 5.5 W for 25 km. ZR and ZR+ QSFP28 coherent variants can reach 80 km or more, but power climbs toward 15 W. PrecisionOT explains the long-haul breakthrough of CFP2 DCO pluggable coherent modules&nbsp;in more detail.<\/p>\n\n\n\n<p>The <strong>cfp2 vs qsfp28<\/strong>&nbsp;choice isn&#8217;t always binary. Sometimes it&#8217;s both: QSFP28 for high-density short reach, CFP2-DCO for the long-haul handoff.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"498\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Metro-and-Long-Haul.png\" alt=\"Metro and Long-Haul\" class=\"wp-image-19904\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Metro-and-Long-Haul.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Metro-and-Long-Haul-300x187.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/Metro-and-Long-Haul-768x478.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cost_and_TCO_Considerations\"><\/span><strong>Cost and TCO Considerations<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Module cost is only one line item. Total cost of ownership includes switch port cost, power, cooling, and rack space.<\/p>\n\n\n\n<p>A QSFP28 module often costs less than a CFP4 module and far less than a CFP2-DCO. More importantly, a QSFP28 switch delivers more ports per rack unit. That lowers the per-Gbps cost of the switch itself.<\/p>\n\n\n\n<p>CFP2 and CFP4 still justify their price when reach is the constraint. A coherent CFP2-DCO may cost more per module than a QSFP28 LR4, but it can replace a separate DWDM transponder and muxponder. The system-level savings can be significant.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Decision_Matrix_When_to_Choose_Which_Form_Factor\"><\/span><strong>Decision Matrix: When to Choose Which Form Factor<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Your Requirement<\/strong><\/td><td><strong>Best Choice<\/strong><\/td><td><strong>Why<\/strong><\/td><\/tr><tr><td>High-density 100G inside a data center<\/td><td>QSFP28<\/td><td>Lowest power, smallest size, biggest ecosystem<\/td><\/tr><tr><td>100G DCI up to 10\u201340 km<\/td><td>QSFP28 LR4 \/ ER4 \/ CWDM4<\/td><td>Low power, proven optics<\/td><\/tr><tr><td>Metro DWDM \/ coherent 100G<\/td><td>CFP2-DCO or CFP4-DCO<\/td><td>Integrated DSP, long reach<\/td><\/tr><tr><td>Legacy CFP hardware refresh<\/td><td>CFP4<\/td><td>Smallest CFP footprint, backward ecosystem<\/td><\/tr><tr><td>400G\/800G roadmap<\/td><td>QSFP28 \u2192 QSFP-DD<\/td><td>Same switch family scales forward<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The matrix isn&#8217;t absolute. Vendor support, existing hardware, and reach requirements all matter. But for new high-density builds in 2026, QSFP28 is the default.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quick_Recap_QSFP_vs_CFP_Family_Trade-Offs\"><\/span><strong>Quick Recap: QSFP vs CFP Family Trade-Offs<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Comparison Point<\/strong><\/td><td><strong>CFP Family<\/strong><\/td><td><strong>QSFP28<\/strong><\/td><\/tr><tr><td>Size trend<\/td><td>Shrinks with each generation; still larger than QSFP28<\/td><td>Smallest 100G pluggable<\/td><\/tr><tr><td>Power trend<\/td><td>Drops from ~24 W to ~6 W<\/td><td>~3.5 W typical<\/td><\/tr><tr><td>Reach<\/td><td>Metro to long-haul with coherent variants<\/td><td>Short-reach to medium-reach; ZR for longer<\/td><\/tr><tr><td>Ecosystem<\/td><td>Telecom and carrier focused<\/td><td>Data center and cloud dominant<\/td><\/tr><tr><td>Migration path<\/td><td>CFP4 within CFP hardware<\/td><td>QSFP-DD and OSFP for 400G\/800G<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>This table restates the core trade-off. QSFP28 wins on density and power. CFP2 and CFP4 win when coherent reach is the priority.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2026_Market_Outlook\"><\/span><strong>2026 Market Outlook<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>CFP is legacy. CFP2 hangs on in coherent transport. CFP4 serves niche high-density roles where a CFP hardware ecosystem already exists. QSFP28 and its QSFP-DD successor dominate data center and cloud deployments.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Legacy CFP:<\/strong>\u00a0Found only in carrier transport gear that hasn&#8217;t been refreshed. Replacement is usually CFP4 or QSFP28, depending on the chassis.<\/li>\n\n\n\n<li><strong>CFP2:<\/strong>\u00a0Still the go-to for coherent 100G metro and long-haul DWDM where ZR+ QSFP28 isn&#8217;t yet approved.<\/li>\n\n\n\n<li><strong>CFP4:<\/strong>\u00a0Used by operators who need a smaller CFP footprint without replacing switches.<\/li>\n\n\n\n<li><strong>QSFP28:<\/strong>\u00a0Default for new 100G builds in data centers, AI clusters, and cloud fabrics.<\/li>\n\n\n\n<li><strong>QSFP-DD\/OSFP:<\/strong>\u00a0The forward path for 400G and 800G, often in the same switch family as QSFP28.<\/li>\n<\/ul>\n\n\n\n<p>Asterfusion&#8217;s 100G packaging guide&nbsp;makes the same point: QSFP28 and CXP fit short-reach data-center links, while CFP\/CFP2\/CFP4 remain relevant for long-distance and carrier networks.<\/p>\n\n\n\n<p>The practical takeaway: if you&#8217;re buying new switch hardware today, choose QSFP28 or QSFP-DD. Keep CFP2 in mind only when coherent long-haul is part of the design.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe title=\"100G QSFP28 ZR4+ Transceiver: 100km Long-Haul Connectivity Solution | FiberMall\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/V-8zk8gaBYM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span><strong>FAQ<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_QSFP_and_CFP4\"><\/span><strong>What is the difference between QSFP and CFP4?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>QSFP28 and CFP4 both deliver 100G over four 25 Gbps lanes. The <strong>qsfp28 vs cfp4<\/strong>&nbsp;comparison comes down to size and ecosystem: QSFP28 is smaller, uses less power, and has broader switch support. CFP4 is part of the CFP ecosystem and is used in hardware designed for that family.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_CFP4_smaller_than_QSFP28\"><\/span><strong>Is CFP4 smaller than QSFP28?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No. CFP4 is roughly 92 \u00d7 21.5 mm. QSFP28 is roughly 72.5 \u00d7 18.35 mm. QSFP28 is the denser package.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Does_CFP_use_more_power_than_QSFP28\"><\/span><strong>Does CFP use more power than QSFP28?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes. First-generation CFP modules can draw up to 24 W. CFP2 draws around 12 W. CFP4 draws around 6 W. QSFP28 typically draws 3.5 W.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_would_I_still_choose_CFP2\"><\/span><strong>When would I still choose CFP2?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Choose CFP2-DCO for coherent 100G metro or long-haul DWDM where reach exceeds what standard QSFP28 can support in the <strong>cfp vs qsfp<\/strong>&nbsp;lineup.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_I_plug_a_CFP4_module_into_a_CFP2_port\"><\/span><strong>Can I plug a CFP4 module into a CFP2 port?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No. CFP2 and CFP4 are mechanically and electrically different. They aren&#8217;t interchangeable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The <strong>qsfp vs cfp<\/strong>&nbsp;decision really comes down to density versus reach. QSFP28 is smaller, cooler, cheaper per bit, and backed by the largest 100G ecosystem. CFP, CFP2, and CFP4 still earn their keep in coherent transport and legacy hardware where long-haul performance matters more than port count.<\/p>\n\n\n\n<p>Start with your reach requirement. Then check your switch hardware. If everything points to short-reach data center or DCI, QSFP28 is almost certainly the right call. If you need coherent DWDM, CFP2-DCO remains a strong option.<\/p>\n\n\n\n<p>If you&#8217;re sourcing 100G modules across QSFP28, CFP4, or CFP2 form factors, explore FiberMall 100G QSFP28 and CFP optical transceiver solutions&nbsp;or contact our networking experts&nbsp;before your next upgrade.<\/p>\n\n\n\n<p><\/p>\n<style>\r\n\r\n        .lwrp.link-whisper-related-posts{\r\n            \r\n            margin-top: 40px;\nmargin-bottom: 30px;\r\n        }\r\n        .lwrp .lwrp-title{\r\n            \r\n            \r\n        }\r\n        .lwrp .lwrp-description{\r\n            \r\n            \r\n\r\n        }\r\n        .lwrp .lwrp-list-container{\r\n        }\r\n        .lwrp .lwrp-list-multi-container{\r\n            display: flex;\r\n        }\r\n        .lwrp .lwrp-list-double{\r\n            width: 48%;\r\n        }\r\n        .lwrp .lwrp-list-triple{\r\n            width: 32%;\r\n        }\r\n        .lwrp .lwrp-list-row-container{\r\n            display: flex;\r\n            justify-content: space-between;\r\n        }\r\n        .lwrp .lwrp-list-row-container .lwrp-list-item{\r\n            width: calc(100% - 20px);\r\n        }\r\n        .lwrp .lwrp-list-item:not(.lwrp-no-posts-message-item){\r\n            \r\n            list-style: decimal;\r\n        }\r\n        .lwrp .lwrp-list-item img{\r\n            max-width: 100%;\r\n            height: auto;\r\n        }\r\n        .lwrp .lwrp-list-item.lwrp-empty-list-item{\r\n            background: initial !important;\r\n        }\r\n        .lwrp .lwrp-list-item .lwrp-list-link .lwrp-list-link-title-text,\r\n        .lwrp .lwrp-list-item .lwrp-list-no-posts-message{\r\n            \r\n                \r\n        }\r\n        @media screen and (max-width: 480px) {\r\n            .lwrp.link-whisper-related-posts{\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-title{\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-description{\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-list-multi-container{\r\n                flex-direction: column;\r\n            }\r\n            .lwrp .lwrp-list-multi-container ul.lwrp-list{\r\n                margin-top: 0px;\r\n                margin-bottom: 0px;\r\n                padding-top: 0px;\r\n                padding-bottom: 0px;\r\n            }\r\n            .lwrp .lwrp-list-double,\r\n            .lwrp .lwrp-list-triple{\r\n                width: 100%;\r\n            }\r\n            .lwrp .lwrp-list-row-container{\r\n                justify-content: initial;\r\n                flex-direction: column;\r\n            }\r\n            .lwrp .lwrp-list-row-container .lwrp-list-item{\r\n                width: 100%;\r\n            }\r\n            .lwrp .lwrp-list-item:not(.lwrp-no-posts-message-item){\r\n                \r\n                \r\n            }\r\n            .lwrp .lwrp-list-item .lwrp-list-link .lwrp-list-link-title-text,\r\n            .lwrp .lwrp-list-item .lwrp-list-no-posts-message{\r\n                \r\n                    \r\n            }\r\n        }<\/style>\r\n<div id=\"link-whisper-related-posts-widget\" class=\"link-whisper-related-posts lwrp\">\r\n            <h3 class=\"lwrp-title\">Related Posts<\/h3>    \r\n        <div class=\"lwrp-list-container\">\r\n                                            <ul class=\"lwrp-list lwrp-list-single\">\r\n                    <li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-transceiver-guide.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">What Is a QSFP Transceiver? The Complete QSFP Family Guide (40G\u2013800G)<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-sfp.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">QSFP vs SFP: Single-Lane vs Quad-Lane Transceivers Compared<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-plus-40g-transceiver-guide.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">QSFP+ Transceiver 40G: The Complete SR4, LR4 &amp; ER4 Guide<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/1-6t-qsfp-roadmap-qsfp-dd1600-guide.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">1.6T QSFP Roadmap: QSFP-DD1600, OSFP, and the Path to 1.6T Ethernet<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-qsfp28-vs-qsfp56.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">QSFP+ vs QSFP28 vs QSFP56: What&#8217;s the Difference? (2026)<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qsfp-cables.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">The Ultimate Guide to QSFP+ Cables: Everything You Need to Know About 40G Connectivity<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/types-of-25g-sfp28-transceivers-vs-qsfp28-vs-qsfp.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Types of 25G SFP28 transceivers and differences vs QSFP28 vs QSFP+<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/video\/40g-qsfp-ir4-psm-optical-transceiver.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">How to use MTP\/MPO cables to connect 40G QSFP+ IR4 PSM Optical Transceiver?<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/video\/40g-qsfp-dac-cable.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">40G QSFP+ DAC cable: how much do you know?<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/what-type-of-40g-qsfp-optical-module-dac-aoc.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">What are the Types\u00a0of 40G QSFP+ Optical Modules, DAC, AOC\u00a0<\/span><\/a><\/li>                <\/ul>\r\n                        <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Elena, a network architect in Amsterdam, stared at two 100G line-card options for her new metro router. One slot took a CFP2 module. The other took a QSFP28. Both promised 100 Gbps. The CFP2 faceplate looked enormous next to the QSFP28 cage. She needed the same bandwidth, but she also needed twelve ports per line [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":19905,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"default","_twitter_share_type":"default","_linkedin_share_type":"default","_pinterest_share_type":"default","_linkedin_share_type_page":"default","_instagram_share_type":"default","_medium_share_type":"default","_threads_share_type":"default","_google_business_share_type":"default","_selected_social_profile":[{"id":"skM9ewvR8O","platform":"linkedin","platformKey":0,"name":"Jason Xue","type":"person","thumbnail_url":"https:\/\/media.licdn.com\/dms\/image\/C5603AQErPqKD0j6qBg\/profile-displayphoto-shrink_100_100\/0\/1599138392315?e=1723075200&v=beta&t=joEkh1OeKQ0F-QpAPv4xxQyBdGlHyccIQZauRSs6RvU","share_type":"default"}],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[2,30],"tags":[],"class_list":["post-19900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-fiber-optic-transceivers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.13 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?<\/title>\n<meta name=\"description\" content=\"Which 100G form factor wins: QSFP vs CFP? Compare CFP, CFP2, CFP4, and QSFP28 on size, power, and reach. Find the right transceiver for your network.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?\" \/>\n<meta property=\"og:description\" content=\"Elena, a network architect in Amsterdam, stared at two 100G line-card options for her new metro router. One slot took a CFP2 module. The other took a\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\" \/>\n<meta property=\"og:site_name\" content=\"fibermall.com\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-24T06:18:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-29T01:50:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Brian\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Brian\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\"},\"author\":{\"name\":\"Brian\",\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/person\/9421292f8817d668e9e64f94dfe9b901\"},\"headline\":\"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?\",\"datePublished\":\"2026-07-24T06:18:21+00:00\",\"dateModified\":\"2026-07-29T01:50:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\"},\"wordCount\":2149,\"publisher\":{\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg\",\"articleSection\":[\"Blog\",\"Fiber Optic Transceivers\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\",\"url\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\",\"name\":\"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?\",\"isPartOf\":{\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg\",\"datePublished\":\"2026-07-24T06:18:21+00:00\",\"dateModified\":\"2026-07-29T01:50:27+00:00\",\"description\":\"Which 100G form factor wins: QSFP vs CFP? Compare CFP, CFP2, CFP4, and QSFP28 on size, power, and reach. Find the right transceiver for your network.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage\",\"url\":\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg\",\"contentUrl\":\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg\",\"width\":900,\"height\":600,\"caption\":\"QSFP VS CFP\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.fibermall.com\/blog.htm\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#website\",\"url\":\"https:\/\/www.fibermall.com\/blog.htm\/\",\"name\":\"fibermall.com\",\"description\":\"Optical Communication Expert\",\"publisher\":{\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.fibermall.com\/blog.htm\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#organization\",\"name\":\"fibermall.com\",\"url\":\"https:\/\/www.fibermall.com\/blog.htm\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Fiber-Mall-Logo.jpg\",\"contentUrl\":\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Fiber-Mall-Logo.jpg\",\"width\":200,\"height\":67,\"caption\":\"fibermall.com\"},\"image\":{\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/person\/9421292f8817d668e9e64f94dfe9b901\",\"name\":\"Brian\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/c196835c5ddcc99559fcfaa0046ffbd895891b78d40ab46bf34f7a5ecd73dfd9?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/c196835c5ddcc99559fcfaa0046ffbd895891b78d40ab46bf34f7a5ecd73dfd9?s=96&d=mm&r=g\",\"caption\":\"Brian\"},\"description\":\"Optical Network Engineer\",\"sameAs\":[\"https:\/\/www.fibermall.com\"],\"url\":\"https:\/\/www.fibermall.com\/blog.htm?author=5\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?","description":"Which 100G form factor wins: QSFP vs CFP? Compare CFP, CFP2, CFP4, and QSFP28 on size, power, and reach. Find the right transceiver for your network.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm","og_locale":"en_US","og_type":"article","og_title":"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?","og_description":"Elena, a network architect in Amsterdam, stared at two 100G line-card options for her new metro router. One slot took a CFP2 module. The other took a","og_url":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm","og_site_name":"fibermall.com","article_published_time":"2026-07-24T06:18:21+00:00","article_modified_time":"2026-07-29T01:50:27+00:00","og_image":[{"width":900,"height":600,"url":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg","type":"image\/jpeg"}],"author":"Brian","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Brian","Est. reading time":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#article","isPartOf":{"@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm"},"author":{"name":"Brian","@id":"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/person\/9421292f8817d668e9e64f94dfe9b901"},"headline":"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?","datePublished":"2026-07-24T06:18:21+00:00","dateModified":"2026-07-29T01:50:27+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm"},"wordCount":2149,"publisher":{"@id":"https:\/\/www.fibermall.com\/blog.htm\/#organization"},"image":{"@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage"},"thumbnailUrl":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg","articleSection":["Blog","Fiber Optic Transceivers"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm","url":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm","name":"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?","isPartOf":{"@id":"https:\/\/www.fibermall.com\/blog.htm\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage"},"image":{"@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage"},"thumbnailUrl":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg","datePublished":"2026-07-24T06:18:21+00:00","dateModified":"2026-07-29T01:50:27+00:00","description":"Which 100G form factor wins: QSFP vs CFP? Compare CFP, CFP2, CFP4, and QSFP28 on size, power, and reach. Find the right transceiver for your network.","breadcrumb":{"@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#primaryimage","url":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg","contentUrl":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/07\/QSFP-VS-CFP.jpg","width":900,"height":600,"caption":"QSFP VS CFP"},{"@type":"BreadcrumbList","@id":"https:\/\/www.fibermall.com\/blog\/qsfp-vs-cfp-cfp2-cfp4-comparison.htm#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fibermall.com\/blog.htm"},{"@type":"ListItem","position":2,"name":"QSFP vs CFP, CFP2, and CFP4: Which 100G Form Factor Wins?"}]},{"@type":"WebSite","@id":"https:\/\/www.fibermall.com\/blog.htm\/#website","url":"https:\/\/www.fibermall.com\/blog.htm\/","name":"fibermall.com","description":"Optical Communication Expert","publisher":{"@id":"https:\/\/www.fibermall.com\/blog.htm\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fibermall.com\/blog.htm\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.fibermall.com\/blog.htm\/#organization","name":"fibermall.com","url":"https:\/\/www.fibermall.com\/blog.htm\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/logo\/image\/","url":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Fiber-Mall-Logo.jpg","contentUrl":"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Fiber-Mall-Logo.jpg","width":200,"height":67,"caption":"fibermall.com"},"image":{"@id":"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/person\/9421292f8817d668e9e64f94dfe9b901","name":"Brian","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fibermall.com\/blog.htm\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/c196835c5ddcc99559fcfaa0046ffbd895891b78d40ab46bf34f7a5ecd73dfd9?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c196835c5ddcc99559fcfaa0046ffbd895891b78d40ab46bf34f7a5ecd73dfd9?s=96&d=mm&r=g","caption":"Brian"},"description":"Optical Network Engineer","sameAs":["https:\/\/www.fibermall.com"],"url":"https:\/\/www.fibermall.com\/blog.htm?author=5"}]}},"_links":{"self":[{"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/posts\/19900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19900"}],"version-history":[{"count":1,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/posts\/19900\/revisions"}],"predecessor-version":[{"id":19906,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/posts\/19900\/revisions\/19906"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=\/wp\/v2\/media\/19905"}],"wp:attachment":[{"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fibermall.com\/blog.htm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}