{"id":4541,"date":"2023-06-15T02:23:47","date_gmt":"2023-06-15T02:23:47","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=4541"},"modified":"2023-12-07T03:37:10","modified_gmt":"2023-12-07T03:37:10","slug":"overview-of-400g-qsfp-dd-optical-transceiver-module","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/blog\/overview-of-400g-qsfp-dd-optical-transceiver.htm","title":{"rendered":"Overview of 400G QSFP-DD Optical Transceiver Module"},"content":{"rendered":"\n<p>QSFP-DD package is favored by 400G due to its advantages of high speed, small size, and pluggable, and 400G QSFP-DD optical module has become one of the most popular optical modules when interconnecting next-generation data center networks. With the standardization of 400G, major vendors, and suppliers have developed different types of 400G QSFP-DD optical modules, such as the 400G QSFP-DD SR8 optical transceiver module shipped in bulk by FiberMall.<\/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\/overview-of-400g-qsfp-dd-optical-transceiver.htm\/#Types_of_400G_QSFP-DD_Optical_Modules\" >Types of 400G QSFP-DD Optical Modules<\/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\/overview-of-400g-qsfp-dd-optical-transceiver.htm\/#Connection_Solutions_for_Regular_400G_QSFP-DD_Optical_Modules\" >Connection Solutions for Regular 400G QSFP-DD Optical Modules<\/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\/overview-of-400g-qsfp-dd-optical-transceiver.htm\/#Related_Posts\" >Related Posts<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-types-of-400g-qsfp-dd-optical-modules\"><span class=\"ez-toc-section\" id=\"Types_of_400G_QSFP-DD_Optical_Modules\"><\/span><span style=\"font-size: 14pt;\"><strong><b>Types of 400G QSFP-DD Optical Modules<\/b><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The types of 400G QSFP-DD optical transceiver modules include 400G QSFP-DD SR8, 400G QSFP-DD DR4, 400G QSFP-DD FR4, 400G QSFP-DD LR4, 400G QSFP-DD LR8 and so on. See the table below for details.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" width=\"875\" height=\"456\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/Types-of-400G-QSFP-DD-Optical-Modules.png\" alt=\"Types of 400G QSFP-DD Optical Modules\" class=\"wp-image-4542\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/Types-of-400G-QSFP-DD-Optical-Modules.png 875w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/Types-of-400G-QSFP-DD-Optical-Modules-300x156.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/Types-of-400G-QSFP-DD-Optical-Modules-768x400.png 768w\" sizes=\"(max-width: 875px) 100vw, 875px\" \/><\/figure>\n\n\n\n<p>The &#8220;SR&#8221; refers to the use of multi-mode fiber to achieve a transmission distance of 70 meters, 100 meters, or 150 meters. &#8220;8&#8221; means the module has 8 fiber channels. &#8220;DR&#8221; refers to a 500m transmission distance using single-mode fiber. &#8220;4&#8221; means the module has 4 fiber channels. &#8220;XDR4&#8221; is an extended version of &#8220;DR4&#8221;. &#8220;FR&#8221; refers to a 2 km transmission distance using single-mode fiber. &#8220;LR&#8221; refers to a 10 km transmission distance using single-mode fiber.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-connection-solutions-for-regular-400g-qsfp-dd-optical-modules\"><span class=\"ez-toc-section\" id=\"Connection_Solutions_for_Regular_400G_QSFP-DD_Optical_Modules\"><\/span><span style=\"font-size: 14pt;\"><strong><b>Connection Solutions for Regular 400G QSFP-DD Optical Modules<\/b><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong><b>400G QSFP-DD SR8<\/b><\/strong><\/p>\n\n\n\n<p>As can be seen above, the<a href=\"https:\/\/www.fibermall.com\/sale-452811-qsfp-dd-400g-sr8-850nm-100m.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\"> 400G QSFP-DD SR8<\/span><\/a> optical module can achieve 400G transmission through the multi-mode fiber with a maximum distance of up to 100 meters (OM4). Therefore, the 400G QSFP-DD SR8 optical module is more suitable for short-distance interconnection or multi-channel data communication. The common connection scheme is as follows: 400G interconnection: 400G QSFP-DD SR8 optical transceiver module at both ends can be connected by MPO\/MTP-16 fiber patch cable to achieve 400G transmission.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" width=\"1029\" height=\"334\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QDD.png\" alt=\"400G QDD\" class=\"wp-image-4543\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QDD.png 1029w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QDD-300x97.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QDD-1024x332.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QDD-768x249.png 768w\" sizes=\"(max-width: 1029px) 100vw, 1029px\" \/><\/figure>\n\n\n\n<p>Multi-channel data communication<\/p>\n\n\n\n<p>\u2460400G QSFP-DD SR8 optical module can be connected to the 200G SR4 optical transceiver module at the opposite end through a MPO\/MTP-16 to 2*MPO\/MTP-8 fiber patch cable.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" width=\"1191\" height=\"377\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-200G-SR4.png\" alt=\"400G QSFP-DD SR8 to 200G SR4\" class=\"wp-image-4544\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-200G-SR4.png 1191w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-200G-SR4-300x95.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-200G-SR4-1024x324.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-200G-SR4-768x243.png 768w\" sizes=\"(max-width: 1191px) 100vw, 1191px\" \/><\/figure>\n\n\n\n<p>\u2461400G QSFP-DD SR8 optical module can be connected to the 50G SF56 optical module at the opposite end through a 16-core MPO\/MTP to 8*LC duplex branch fiber patch cable.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1277\" height=\"499\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-50G-SF56.jpg\" alt=\"400G QSFP-DD SR8 to 50G SF56\" class=\"wp-image-4545\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-50G-SF56.jpg 1277w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-50G-SF56-300x117.jpg 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-50G-SF56-1024x400.jpg 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-SR8-to-50G-SF56-768x300.jpg 768w\" sizes=\"(max-width: 1277px) 100vw, 1277px\" \/><\/figure>\n\n\n\n<p><strong><b>400G QSFP-DD DR4<\/b><\/strong><\/p>\n\n\n\n<p>The 400G QSFP-DD DR4 optical module is suitable for interconnecting 400G and 100G over short distances because of its transmission distance of up to 500 meters and its support for interconnecting with 100G DR optical modules.<\/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=\"400G QSFP-DD DR4 Introduction and Application | FiberMall\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/YmqWeY25plY?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<p><a href=\"https:\/\/www.fibermall.com\/sale-452821-400g-qsfp-dd-dr4-1310nm-500m-pam4.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">400G QSFP-DD DR4<\/span><\/a> optical transceiver module can be connected to 100G DR optical modules at the opposite end through an MPO-12 to 4*LC duplex branch fiber patch cable.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1269\" height=\"512\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-DR4.png\" alt=\"400G QSFP-DD DR4\" class=\"wp-image-4546\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-DR4.png 1269w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-DR4-300x121.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-DR4-1024x413.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-DR4-768x310.png 768w\" sizes=\"(max-width: 1269px) 100vw, 1269px\" \/><\/figure>\n\n\n\n<p><strong><b>400G QSFP-DD XDR4\/DR4+<\/b><\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/www.fibermall.com\/sale-458197-qsfp-dd-400g-xdr4-1310nm-2km.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">The 400G QSFP-DD XDR4<\/span><\/a> and 400G QSFP-DD DR4+ optical module is an extended version of the 400G QSFP-DD DR4 optical module, which can be interconnected with the 100G FR optical module. Therefore, this module can be connected to the 100G FR optical transceiver module at the opposite end through an MPO-12 to 4*LC duplex branch fiber patch cable.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1271\" height=\"521\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-XDR4-DR4.jpg\" alt=\"400G QSFP-DD XDR4 DR4+\" class=\"wp-image-4547\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-XDR4-DR4.jpg 1271w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-XDR4-DR4-300x123.jpg 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-XDR4-DR4-1024x420.jpg 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-XDR4-DR4-768x315.jpg 768w\" sizes=\"(max-width: 1271px) 100vw, 1271px\" \/><\/figure>\n\n\n\n<p><strong><b>400G QSFP-DD FR4<\/b><\/strong><\/p>\n\n\n\n<p>The 400G QSFP-DD FR4 optical transceiver module is suitable for 400G interconnection because it uses four CWDM wavelength uncooled EML lasers with PAM4 modulation based on single-wave transmission at rates up to 106.25Gbps. Two <a href=\"https:\/\/www.fibermall.com\/sale-452823-400g-qsfp-dd-fr4-cwdm4-2km-pam4.htm\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">400G QSFP-DD FR4 optical modules<\/span><\/a> can be interconnected through LC duplex fiber patch cables for 400G interconnection.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1287\" height=\"490\" src=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-FR4.png\" alt=\"400G QSFP-DD FR4\" class=\"wp-image-4548\" srcset=\"https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-FR4.png 1287w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-FR4-300x114.png 300w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-FR4-1024x390.png 1024w, https:\/\/www.fibermall.com\/blog\/wp-content\/uploads\/2023\/06\/400G-QSFP-DD-FR4-768x292.png 768w\" sizes=\"(max-width: 1287px) 100vw, 1287px\" \/><\/figure>\n\n\n\n<p><strong><b>400G QSFP-DD FR8<\/b><\/strong><\/p>\n\n\n\n<p>400G QSFP-DD FR8 optical module (400G QSFP-DD 2FR4 optical module) is a 2*200G module. Different from the 400G QSFP-DD FR4 optical module, the 400G QSFP-DD FR8 optical module adopts 50G PAM4 modulation technology and provides eight fiber channels, which is more suitable for multi-channel data communication. Normally, the 400G QSFP-DD FR8 optical module can be connected to the opposite end 200G FR4 optical module through 2*CS to 2*LC duplex branch fiber patch cable.<\/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\/poe-switch-8-port.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Ultimate Guide: 8-Port PoE Gigabit Ethernet Switch for Your Network<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/osfp-data-center-deployment-guide.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">OSFP Data Center Deployment: Complete Architecture and Implementation Guide<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/how-to-use-otdr.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">How to use OTDR?<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/qm8700.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">Mellanox Quantum HDR 200Gb\/s InfiniBand QM8700-HS2F Port Switches for Data Centers<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/www.fibermall.com\/blog\/osfp-future-roadmap-2025-2027.htm\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">OSFP Future Roadmap: 800G to 1.6T Data Center Planning 2025-2027<\/span><\/a><\/li>                <\/ul>\r\n                        <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>QSFP-DD package is favored by 400G due to its advantages of high speed, small size, and pluggable, and 400G QSFP-DD optical module has become one of the most popular optical modules when interconnecting next-generation data center networks. With the standardization of 400G, major vendors, and suppliers have developed different types of 400G QSFP-DD optical modules, [&hellip;]<\/p>\n","protected":false},"author":227,"featured_media":4544,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"default","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 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