{"id":20569,"date":"2026-10-21T08:40:20","date_gmt":"2026-10-21T08:40:20","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=20569"},"modified":"2026-10-21T08:40:23","modified_gmt":"2026-10-21T08:40:23","slug":"what-is-usfp-the-400g-per-lane-optical-module-explained","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm","title":{"rendered":"What Is USFP? The 400G-per-Lane Optical Module, Explained"},"content":{"rendered":"\n<p>USFP (Ultra-Dense Small Form Factor Pluggable) is a next-generation optical transceiver form factor being developed by NVIDIA and Cisco. It is designed to be the first pluggable optics form factor to support 400 Gb\/s per electrical lane. Announced at the OCP Global Summit in October 2026, the initial design features 16 full-duplex electrical lanes in an OSFP-sized footprint, providing a planned aggregate capacity of 6.4 Tb\/s per direction, with a roadmap toward 12.8 Tb\/s and beyond.<\/p>\n\n\n\n<p>One of USFP&#8217;s most significant advantages is its potential to deliver 6.4 Tb\/s of aggregate bandwidth in approximately the same module footprint as today&#8217;s 1.6T OSFP transceivers. For operators planning the next generation of AI data center fabrics, this increase in bandwidth density could significantly improve switch port capacity, power efficiency, and infrastructure scalability.<\/p>\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\/what-is-usfp.htm\/#What_Is_USFP\" >What Is USFP?<\/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\/what-is-usfp.htm\/#USFP_Key_Specifications\" >USFP Key Specifications<\/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\/what-is-usfp.htm\/#400_Gbs_Per_Lane_and_Module_Capacity\" >400 Gb\/s Per Lane and Module Capacity<\/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\/what-is-usfp.htm\/#Power_Thermal_and_the_100W_Envelope\" >Power, Thermal, and the 100W Envelope<\/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\/what-is-usfp.htm\/#The_Two-Dimensional_Connector_and_Two-Step_Insertion\" >The Two-Dimensional Connector and Two-Step Insertion<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#Why_USFP_Matters_for_AI_Data_Center_Fabrics\" >Why USFP Matters for AI Data Center Fabrics<\/a><\/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\/what-is-usfp.htm\/#USFP_vs_OSFP-XD_XPO_and_Co-Packaged_Optics\" >USFP vs OSFP-XD, XPO, and Co-Packaged Optics<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#USFP_vs_OSFP-XD\" >USFP vs OSFP-XD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#USFP_vs_XPO\" >USFP vs XPO<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#USFP_vs_Co-Packaged_Optics_CPO\" >USFP vs Co-Packaged Optics (CPO)<\/a><\/li><\/ul><\/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\/what-is-usfp.htm\/#Is_USFP_Compatible_with_Existing_Optical_Modules\" >Is USFP Compatible with Existing Optical Modules?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#USFP_Availability_and_Roadmap_What_We_Know_and_Dont\" >USFP Availability and Roadmap: What We Know (and Don&#8217;t)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#What_USFP_Means_for_Your_Optical_Networking_Roadmap\" >What USFP Means for Your Optical Networking Roadmap<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.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-15\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#What_does_USFP_stand_for\" >What does USFP stand for?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#What_is_a_USFP_optical_module_used_for\" >What is a USFP optical module used for?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#Is_USFP_compatible_with_SFP_or_QSFP_ports\" >Is USFP compatible with SFP or QSFP ports?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#When_will_USFP_optical_modules_be_available\" >When will USFP optical modules be available?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.fibermall.com\/blog\/what-is-usfp.htm\/#What_is_the_difference_between_USFP_and_co-packaged_optics\" >What is the difference between USFP and co-packaged optics?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_USFP\"><\/span><strong>What Is USFP?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>USFP stands for Ultra-Dense Small Form Factor Pluggable. It is a next-generation optical transceiver form factor announced by NVIDIA and Cisco at the OCP Global Summit 2026, with TE Connectivity and Amphenol collaborating on the connector and module ecosystem.<\/p>\n\n\n\n<p>The form factor is designed primarily for Ethernet AI fabrics, including high-speed networks connecting GPUs, SuperNICs, and data center switches in AI training and inference clusters. In these environments, front-panel bandwidth density, energy consumption per bit, and network scalability are increasingly important factors affecting total cost of ownership.<\/p>\n\n\n\n<p>Two design goals define USFP. The first is to support electrical signaling rates of up to 400 Gb\/s per lane, representing a major step beyond today&#8217;s 200G-per-lane pluggable interfaces. The second is to preserve the field-replaceable, pluggable deployment model that data center operators have relied on for decades, rather than requiring a transition exclusively to co-packaged optics.<\/p>\n\n\n\n<p>This matters because front-panel bandwidth density is becoming a significant constraint in large AI fabrics. When existing switches cannot provide enough connectivity, operators may need additional network tiers, increasing optical connections, power consumption, cost, and potentially latency. USFP is designed to help address these challenges by increasing the bandwidth available within a compact module footprint.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"USFP_Key_Specifications\"><\/span><strong>USFP Key Specifications<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The announced design targets provide network engineers with an initial understanding of USFP&#8217;s capabilities. However, the technology is still under development, and some implementation details remain subject to future specifications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"400_Gbs_Per_Lane_and_Module_Capacity\"><\/span><strong>400 Gb\/s Per Lane and Module Capacity<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>USFP is designed to be the first pluggable optics form factor supporting up to 400 Gb\/s per electrical lane. The initial design is planned to accommodate 16 full-duplex electrical lanes in an OSFP-sized footprint, providing a theoretical aggregate capacity of 6.4 Tb\/s in each direction. Future configurations could expand to 32 or more lanes, enabling capacities of 12.8 Tb\/s or higher.<\/p>\n\n\n\n<p>For comparison, current high-speed pluggable architectures support electrical signaling rates of up to 200 Gb\/s per lane. A conventional 1.6T OSFP module typically uses eight 200G electrical lanes. By doubling both the lane count and the per-lane signaling rate, the proposed 6.4T USFP design targets four times the aggregate bandwidth within a comparable module footprint.<\/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\/10\/USFP-400G-per-Lane-Architecture.png\" alt=\"USFP 400G-per-Lane Architecture\" class=\"wp-image-20573\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-400G-per-Lane-Architecture.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-400G-per-Lane-Architecture-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-400G-per-Lane-Architecture-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Importantly, the announced 400G-per-lane capability refers to the electrical interface. The number of optical lanes, modulation format, and optical interface configuration will depend on the specific transceiver implementation and future industry specifications.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Specification<\/strong><strong><\/strong><\/td><td><strong>USFP Value<\/strong><strong><\/strong><\/td><\/tr><tr><td>Per-lane electrical rate<\/td><td>Up to 400 Gb\/s<\/td><\/tr><tr><td>Initial electrical lanes<\/td><td>16 full-duplex<\/td><\/tr><tr><td>Initial module capacity<\/td><td>6.4 Tb\/s per direction (planned)<\/td><\/tr><tr><td>Roadmap capacity<\/td><td>32 or more lanes; 12.8 Tb\/s and beyond<\/td><\/tr><tr><td>Footprint<\/td><td>Comparable to OSFP<\/td><\/tr><tr><td>Bandwidth density<\/td><td>Up to 4\u00d7 versus conventional 1.6T OSFP pluggables<\/td><\/tr><tr><td>Power efficiency<\/td><td>Approximately 1.3\u00d7 improvement targeted versus 200G-per-lane pluggables<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><em>Note: These figures represent announced design targets and roadmap capabilities, not independently verified specifications of commercially available USFP products.<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Power_Thermal_and_the_100W_Envelope\"><\/span><strong>Power, Thermal, and the 100W Envelope<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As optical module capacity increases, power consumption and thermal management become increasingly important. USFP is designed to support module power dissipation of up to 100W without requiring a separate, dedicated embedded cooling circuit inside the transceiver. The form factor is intended to support integration into systems using appropriate air-cooling or liquid-cooling solutions.<\/p>\n\n\n\n<p>The 100W figure represents a targeted thermal dissipation capability rather than the typical operating power of every USFP implementation. Actual module power consumption will depend on the optical architecture, signal processing, reach, and other design parameters.<\/p>\n\n\n\n<p>NVIDIA and Cisco have also indicated that USFP could deliver approximately 1.3 times the power efficiency of existing 200G-per-lane pluggable optics. This improvement is associated with higher per-lane signaling rates and architectural optimizations that aim to reduce the energy required to transmit each bit of data.<\/p>\n\n\n\n<p>However, the actual energy efficiency of future USFP products will need to be evaluated using commercial implementations under comparable operating conditions.<\/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\/10\/USFP-vs-OSFP-Bandwidth-Density.png\" alt=\"USFP vs OSFP Bandwidth Density\" class=\"wp-image-20574\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-Bandwidth-Density.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-Bandwidth-Density-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-Bandwidth-Density-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Two-Dimensional_Connector_and_Two-Step_Insertion\"><\/span><strong>The Two-Dimensional Connector and Two-Step Insertion<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>One of USFP&#8217;s most distinctive design features is its new electrical connector architecture. Instead of relying on a conventional single-row card-edge interface, USFP uses a two-dimensional contact array designed to accommodate additional high-speed electrical lanes.<\/p>\n\n\n\n<p>The connector also incorporates a two-step insertion mechanism. High-speed electrical contacts engage only after the module has been inserted into position, helping reduce contact wear, improve signal integrity, and make insertion forces more predictable.<\/p>\n\n\n\n<p>These features are especially important as electrical signaling rates increase toward 400 Gb\/s per lane, where connector geometry, crosstalk, and signal integrity become increasingly challenging.<\/p>\n\n\n\n<p>The connector architecture is also intended to provide improved electrical performance when operating at 200 Gb\/s per lane, offering flexibility for systems that use different SerDes generations.<\/p>\n\n\n\n<p>For field engineers, this design could improve insertion reliability and long-term serviceability. However, actual insertion-cycle durability and field reliability will depend on the final connector specifications and qualification testing.<\/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\/10\/USFP-Two-Dimensional-Connector.png\" alt=\"USFP Two-Dimensional Connector\" class=\"wp-image-20575\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Two-Dimensional-Connector.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Two-Dimensional-Connector-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Two-Dimensional-Connector-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_USFP_Matters_for_AI_Data_Center_Fabrics\"><\/span><strong>Why USFP Matters for AI Data Center Fabrics<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The clearest way to understand USFP is to examine the problem it is designed to solve: scaling AI network capacity without unnecessarily increasing the number of network tiers.<\/p>\n\n\n\n<p>Modern AI clusters require high-bandwidth communication among GPUs, accelerators, SuperNICs, and Ethernet switches. As these systems scale, operators need more bandwidth per connection and more connectivity within the same physical infrastructure.<\/p>\n\n\n\n<p>USFP aims to address these requirements by increasing the bandwidth density of front-panel optical connections. A higher-capacity pluggable interface could allow switches and computing systems to support more aggregate bandwidth within a given equipment footprint, potentially reducing the need for additional switch layers and optical links.<\/p>\n\n\n\n<p>The form factor also represents an important alternative in the ongoing discussion between pluggable and co-packaged optics.<\/p>\n\n\n\n<p>USFP demonstrates that NVIDIA and Cisco see a continued role for high-density pluggable optics alongside co-packaged solutions in future AI networks. Pluggable modules preserve important operational advantages, including field replacement, modular upgrades, and the potential for multi-vendor sourcing through an open ecosystem.<\/p>\n\n\n\n<p>While co-packaged optics can reduce electrical interconnect lengths and potentially improve energy efficiency, pluggable solutions remain attractive for organizations that prioritize deployment flexibility, maintenance efficiency, and independent module replacement.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/Why-USFP-Matters-for-AI-Data-Center-Fabrics.png\" alt=\"Why USFP Matters for AI Data Center Fabrics\" class=\"wp-image-20576\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/Why-USFP-Matters-for-AI-Data-Center-Fabrics.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/Why-USFP-Matters-for-AI-Data-Center-Fabrics-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/Why-USFP-Matters-for-AI-Data-Center-Fabrics-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"USFP_vs_OSFP-XD_XPO_and_Co-Packaged_Optics\"><\/span><strong>USFP vs OSFP-XD, XPO, and Co-Packaged Optics<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>USFP is not the only technology addressing the growing bandwidth-density requirements of AI data centers. Other approaches, including OSFP-XD, XPO, and co-packaged optics, offer different trade-offs in electrical lane count, signaling rates, thermal management, and serviceability.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"USFP_vs_OSFP-XD\"><\/span><strong>USFP vs OSFP-XD<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>OSFP-XD (Octal Small Form Factor Pluggable \u2013 Extended Density) is an evolution of the OSFP form-factor family, designed to increase electrical interface density by supporting up to 16 high-speed electrical lanes.<\/p>\n\n\n\n<p>Depending on the lane rate and implementation, OSFP-XD can support configurations ranging from 800G to 3.2T, including 16 \u00d7 100G and 8 \u00d7 200G architectures.<\/p>\n\n\n\n<p>Although OSFP-XD belongs to the broader OSFP family, it uses a different mechanical and electrical interface from standard OSFP. The two form factors are not directly interchangeable, and their modules cannot be inserted into each other&#8217;s ports.<\/p>\n\n\n\n<p>USFP takes a different approach by introducing a new connector architecture designed for up to 400G-per-lane electrical signaling. Its initial 16-lane configuration targets 6.4T aggregate bandwidth, with a roadmap toward 32 or more lanes.<\/p>\n\n\n\n<p>The key distinction is that OSFP-XD increases interface density within the existing OSFP technology family, while USFP introduces a new high-density connector architecture intended to support higher signaling rates and future lane-count expansion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"USFP_vs_XPO\"><\/span><strong>USFP vs XPO<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Arista&#8217;s XPO (eXtra-dense Pluggable Optics) multi-source agreement addresses bandwidth density through a different architecture: a larger number of electrical lanes combined with integrated liquid cooling.<\/p>\n\n\n\n<p>The initial XPO architecture uses 64 electrical lanes operating at 200 Gb\/s per lane, delivering an aggregate capacity of 12.8 Tb\/s. Its design incorporates two 32-lane electrical interface sections and an integrated liquid-cooling cold plate capable of dissipating up to 400W per module.<\/p>\n\n\n\n<p>XPO also has a roadmap toward 400G-per-lane signaling, which could increase aggregate capacity to 25.6 Tb\/s.<\/p>\n\n\n\n<p>The main difference lies in the balance between lane rate, physical module dimensions, and thermal design.<\/p>\n\n\n\n<p>USFP targets higher per-lane signaling rates within an OSFP-sized footprint, with a thermal dissipation capability of up to 100W. XPO uses a substantially larger, liquid-cooled module with more electrical lanes to achieve higher aggregate module bandwidth.<\/p>\n\n\n\n<p>Both approaches seek to increase front-panel bandwidth density while retaining the operational advantages of pluggable optical modules.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-XD-vs-XPO-vs-CPO.png\" alt=\"USFP vs OSFP-XD vs XPO vs CPO\" class=\"wp-image-20577\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-XD-vs-XPO-vs-CPO.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-XD-vs-XPO-vs-CPO-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-vs-OSFP-XD-vs-XPO-vs-CPO-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"USFP_vs_Co-Packaged_Optics_CPO\"><\/span><strong>USFP vs Co-Packaged Optics (CPO)<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Co-packaged optics integrate optical engines within the same package or closely associated assembly as the switch ASIC, significantly reducing the length of high-speed electrical connections between the switching silicon and optical interfaces.<\/p>\n\n\n\n<p>Shorter electrical paths can reduce signal loss, retiming requirements, and electrical interconnect power consumption. Depending on the architecture, co-packaged optics can achieve substantial improvements in system-level energy efficiency.<\/p>\n\n\n\n<p>NVIDIA has introduced Quantum-X Photonics and Spectrum-X Photonics switch architectures based on co-packaged optical technology, demonstrating the growing industry interest in integrating optical connectivity more closely with high-performance switching silicon.<\/p>\n\n\n\n<p>The primary trade-off is serviceability.<\/p>\n\n\n\n<p>USFP is designed as a field-replaceable pluggable module that can be installed or replaced through a compatible front-panel port. By contrast, co-packaged optical engines are typically integrated more deeply into the switch hardware and generally cannot be replaced through a conventional front-panel pluggable interface.<\/p>\n\n\n\n<p>Depending on the CPO implementation, maintenance may involve replacing an optical engine assembly, board, or other system-level component. Some architectures also use separately serviceable external laser sources.<\/p>\n\n\n\n<p>As a result, USFP and CPO represent different approaches to improving network bandwidth density and power efficiency, rather than direct one-to-one replacements.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Form Factor<\/strong><strong><\/strong><\/td><td><strong>Technology \/ Ecosystem<\/strong><strong><\/strong><\/td><td><strong>Electrical Lane Rate<\/strong><strong><\/strong><\/td><td><strong>Module Bandwidth<\/strong><strong><\/strong><\/td><td><strong>Thermal Design<\/strong><strong><\/strong><\/td><td><strong>Field-Replaceable<\/strong><strong><\/strong><\/td><\/tr><tr><td>OSFP-XD<\/td><td>OSFP MSA<\/td><td>Up to 200G in specified configurations<\/td><td>Up to 3.2T<\/td><td>Module-dependent<\/td><td>Yes<\/td><\/tr><tr><td>XPO<\/td><td>Arista-led XPO MSA<\/td><td>200G; 400G roadmap<\/td><td>12.8T; 25.6T roadmap<\/td><td>Integrated liquid cooling, up to 400W<\/td><td>Yes<\/td><\/tr><tr><td>USFP<\/td><td>NVIDIA and Cisco<\/td><td>Up to 400G<\/td><td>6.4T planned; 12.8T roadmap<\/td><td>Up to 100W dissipation<\/td><td>Yes<\/td><\/tr><tr><td>CPO<\/td><td>NVIDIA, Broadcom, and others<\/td><td>Architecture-dependent<\/td><td>System-level, design-dependent<\/td><td>Integrated system cooling<\/td><td>Design-dependent; not front-panel pluggable<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><em>Note: Bandwidth figures include announced designs and roadmap targets. Thermal dissipation capabilities are not equivalent to typical module power consumption, and different optical architectures should be evaluated under comparable system-level conditions.<\/em><\/p>\n\n\n\n<p>Choosing between USFP, OSFP-XD, XPO, and CPO depends on your network architecture, bandwidth-density requirements, power budget, cooling infrastructure, and serviceability priorities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_USFP_Compatible_with_Existing_Optical_Modules\"><\/span><strong>Is USFP Compatible with Existing Optical Modules?<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>No. USFP is mechanically and electrically distinct from existing SFP, QSFP, and standard OSFP form factors. Although its initial module footprint is designed to be comparable to OSFP, USFP uses a new connector architecture and requires compatible host interfaces, cages, and system designs.<\/p>\n\n\n\n<p>This means a USFP module cannot simply be inserted into an existing SFP, QSFP, or OSFP port.<\/p>\n\n\n\n<p>However, the proposed USFP electrical architecture is designed to support both 200G- and 400G-per-lane signaling. This provides a potential migration path across different SerDes generations, provided the host system and module are specifically designed for the required operating mode.<\/p>\n\n\n\n<p>This distinction is important because the term &#8220;small form factor pluggable&#8221; might suggest that USFP is a direct extension of the traditional SFP family.<\/p>\n\n\n\n<p>It is not. Conventional SFP modules generally use a single high-speed electrical lane, while USFP is designed around a much higher-density, multi-lane electrical interface with 16 or more full-duplex lanes.<\/p>\n\n\n\n<p>The shared term &#8220;pluggable&#8221; refers primarily to the module deployment and replacement model, not to mechanical or electrical compatibility.<\/p>\n\n\n\n<p>For a deeper look at existing optical module form factors, see our guide to <a href=\"https:\/\/www.fibermall.com\/blog\/understanding-optical-transceiver.htm\" target=\"_blank\"><u>optical transceiver modules<\/u><\/a>&nbsp;and our comparison of <a href=\"https:\/\/www.fibermall.com\/blog\/what-are-the-sfp-and-qsfp-ports-of-switches.htm\" target=\"_blank\"><u>SFP vs QSFP ports<\/u><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"USFP_Availability_and_Roadmap_What_We_Know_and_Dont\"><\/span><strong>USFP Availability and Roadmap: What We Know (and Don&#8217;t)<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Understanding USFP&#8217;s development status is important for network engineers and procurement teams evaluating future optical networking platforms.<\/p>\n\n\n\n<p>What we know: NVIDIA and Cisco announced USFP design plans in October 2026 and intend to establish an open, community-led multi-source agreement. The companies are working with TE Connectivity and Amphenol to develop an ecosystem of compatible cages, connectors, and optical modules.<\/p>\n\n\n\n<p>The proposed architecture supports electrical signaling rates of up to 400 Gb\/s per lane, with an initial 16-lane configuration and future expansion toward 32 or more lanes.<\/p>\n\n\n\n<p>What we do not know: as of October 2026, NVIDIA and Cisco have not announced confirmed commercial availability dates, volume production schedules, or a complete set of publicly available interoperability specifications for USFP products.<\/p>\n\n\n\n<p>Commercial systems using 400G-per-lane SerDes are also not yet established in the mainstream switch market. Current announced platforms, including Cisco Silicon One G302 and NVIDIA&#8217;s latest 200G-per-lane networking architectures, illustrate the industry&#8217;s ongoing transition toward higher signaling rates.<\/p>\n\n\n\n<p>USFP therefore represents a forward-looking architecture intended to support future generations of AI networking hardware.<\/p>\n\n\n\n<p>Industry observers may anticipate further development and potential commercialization over the next several years, but specific production schedules remain unconfirmed.<\/p>\n\n\n\n<p>Several important technical details also require further clarification through future specifications and product announcements, including Ethernet port mappings, optical lane configurations, modulation formats, FEC requirements, transmission reach, and interoperability qualification procedures.<\/p>\n\n\n\n<p>The practical takeaway for network planners is that USFP should be treated as an emerging technology roadmap rather than a currently deployable optical module standard.<\/p>\n\n\n\n<p>Organizations planning future AI fabric upgrades should monitor USFP development, but projects requiring hardware within the next twelve months should continue to evaluate commercially available optical solutions and confirmed supplier roadmaps.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Availability-and-Roadmap.png\" alt=\"USFP Availability and Roadmap\" class=\"wp-image-20578\" style=\"width:800px\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Availability-and-Roadmap.png 800w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Availability-and-Roadmap-300x169.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2026\/10\/USFP-Availability-and-Roadmap-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_USFP_Means_for_Your_Optical_Networking_Roadmap\"><\/span><strong>What USFP Means for Your Optical Networking Roadmap<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>For most data center operators, the decision is not simply whether to adopt USFP. A more practical question is which optical technologies to deploy today and which capabilities to prepare for in the next infrastructure refresh.<\/p>\n\n\n\n<p>For near-term deployments, commercially available QSFP-DD and OSFP optical modules supporting 400G and 800G remain widely relevant, while 1.6T OSFP represents an important emerging generation of high-capacity pluggable optics.<\/p>\n\n\n\n<p>USFP becomes particularly relevant when planning future AI network architectures that may require substantially higher front-panel bandwidth density and 400G-per-lane electrical signaling.<\/p>\n\n\n\n<p>Organizations considering a 2027-or-later network refresh may benefit from tracking USFP&#8217;s development alongside OSFP-XD, XPO, and CPO technologies. However, adoption decisions should be based on confirmed product availability, interoperability specifications, system compatibility, and total cost of ownership.<\/p>\n\n\n\n<p>This is where working with an optical networking supplier offering a broad product portfolio can help.<\/p>\n\n\n\n<p>FiberMall provides optical transceivers ranging from 10G to 800G, along with DAC and AOC cables, WDM equipment, and other optical networking solutions. These products support the deployment and expansion of today&#8217;s Ethernet and data center networks while allowing customers to follow emerging technologies such as USFP.<\/p>\n\n\n\n<p>FiberMall also performs compatibility and performance testing for supported optical transceiver models across major networking platforms, helping customers select appropriate solutions for their existing infrastructure.<\/p>\n\n\n\n<p>As future USFP specifications and compatible hardware become available, interoperability testing and multi-vendor qualification will remain essential considerations for successful adoption.<\/p>\n\n\n\n<p>For a broader perspective on optical networking evolution, explore our <a href=\"https:\/\/www.fibermall.com\/blog\/optical-transceiver-technology-trends-of-data-center-in-2022.htm\" target=\"_blank\"><u>optical transceiver technology trends<\/u><\/a>&nbsp;overview to understand how successive generations of optical technology have increased network capacity and efficiency.<\/p>\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_does_USFP_stand_for\"><\/span><strong>What does USFP stand for?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>USFP stands for Ultra-Dense Small Form Factor Pluggable. It is a next-generation optical transceiver form factor announced by NVIDIA and Cisco for high-density AI data center networks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_USFP_optical_module_used_for\"><\/span><strong>What is a USFP optical module used for?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>USFP is designed to increase front-panel bandwidth density in AI Ethernet fabrics, supporting high-speed connections between switches, SuperNICs, and other compatible networking equipment. Its proposed electrical interface supports up to 400 Gb\/s per lane.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_USFP_compatible_with_SFP_or_QSFP_ports\"><\/span><strong>Is USFP compatible with SFP or QSFP ports?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No. USFP uses a new high-density connector architecture and is not mechanically or electrically compatible with existing SFP, QSFP, or standard OSFP ports. It requires compatible host hardware.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_will_USFP_optical_modules_be_available\"><\/span><strong>When will USFP optical modules be available?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As of October 2026, NVIDIA and Cisco have not announced confirmed sampling or commercial availability dates. USFP remains an emerging technology, with further specifications and product development expected.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_USFP_and_co-packaged_optics\"><\/span><strong>What is the difference between USFP and co-packaged optics?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>USFP is designed as a field-replaceable optical module with up to 100W of thermal dissipation capability. Co-packaged optics integrate optical engines closer to switch ASICs to reduce electrical interconnect lengths and potentially improve energy efficiency, but generally offer less convenient module-level replacement.<\/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\/40gb-switch.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Affordable Enterprise Ethernet Switches with 40Gb Data Transfer Rate &#8211; 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It is designed to be the first pluggable optics form factor to support 400 Gb\/s per electrical lane. Announced at the OCP Global Summit in October 2026, the initial design features 16 full-duplex electrical lanes in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20579,"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-20569","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>What Is USFP? 400G-per-Lane Pluggable Optics Explained<\/title>\n<meta name=\"description\" content=\"USFP is the new 400G-per-lane pluggable optics spec from NVIDIA and Cisco. 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