{"id":4396,"date":"2026-05-13T03:17:52","date_gmt":"2026-05-13T03:17:52","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/40g-swdm4-module-high-speed-network-upgrade-benefits\/"},"modified":"2026-05-26T02:35:54","modified_gmt":"2026-05-26T02:35:54","slug":"40g-swdm4-module-high-speed-network-upgrade-benefits","status":"publish","type":"post","link":"https:\/\/lp.szlogic.cn\/ru\/products\/40g-swdm4-module-high-speed-network-upgrade-benefits","title":{"rendered":"Why Choose LQ\u2011SW40\u2011SR4C 40G QSFP+ Module for High-Speed Networks"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e9b86abc8c68400bb128ed36da363bc3.webp\" alt=\"LQ\u2011SW40\u2011SR4C 40G QSFP+ Module\" class=\"wp-image-4393\" srcset=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e9b86abc8c68400bb128ed36da363bc3.webp 1200w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e9b86abc8c68400bb128ed36da363bc3-300x178.webp 300w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e9b86abc8c68400bb128ed36da363bc3-1024x608.webp 1024w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e9b86abc8c68400bb128ed36da363bc3-768x456.webp 768w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e9b86abc8c68400bb128ed36da363bc3-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Introduction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In today\u2019s high-speed networking environment, data centres and enterprise networks demand faster, more reliable, and cost-efficient solutions. The LINK-PP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\"><strong>LQ-SW40-SR4C 40GBASE-SR SWDM4 module<\/strong><\/a> is designed to meet these needs, delivering 40 Gb\/s over duplex multimode fibre while optimising power, cost, and performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Key Takeaways<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>The <strong>LQ-SW40-SR4C<\/strong> adopts <strong>SWDM4 technology<\/strong>, enabling 40 Gb\/s transmission over standard duplex MMF without infrastructure overhaul.<\/p><\/li><li><p>Compatible with <strong>OM3\/OM4 multimode fibre<\/strong>, offering link distances up to <strong>350m<\/strong>.<\/p><\/li><li><p>Features <strong>low power consumption (&lt; 3.5 W)<\/strong> for energy-efficient data-centre operations.<\/p><\/li><li><p>Fully compliant with <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/what-is-ieee-802-3ba-standard\"><strong>IEEE 802.3ba<\/strong><\/a><strong>, <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/qsfp-plus-msa-explained-40g-qsfp-plus-modules\"><strong>QSFP+ MSA<\/strong><\/a><strong>, and SWDM MSA<\/strong> for broad interoperability.<\/p><\/li><li><p>Provides a <strong>cost-effective and scalable upgrade path<\/strong> from 10G to 40G networks.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Key Features<\/h2>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>40 Gb\/s Data Rate<\/strong>: Supports high-speed QSFP+ links for demanding network applications. (<a target=\"_new\" rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/www.l-p.com\/file\/datasheet\/lq-sw40-sr4c.pdf?utm_source=chatgpt.com\">l-p.com<\/a>)<\/p><\/li><li><p><strong>SWDM4 Technology<\/strong>: Four wavelengths (850 nm \/ 880 nm \/ 910 nm \/ 940 nm) at 10 Gb\/s each for efficient fibre usage.<\/p><\/li><li><p><strong>Duplex LC\/UPC Connectors<\/strong>: Compatible with standard multimode fibre (MMF) infrastructure.<\/p><\/li><li><p><strong>Extended Reach<\/strong>: Up to 240 m on OM3 and 350 m on OM4 fibre for flexible data-centre layouts.<\/p><\/li><li><p><strong>Low Power Consumption<\/strong>: Typical &lt; 3.5 W to reduce heat load and operational cost.<\/p><\/li><li><p><strong>Standards Compliance<\/strong>: Fully compliant with QSFP+ MSA, SWDM MSA, IEEE 802.3ba, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/sff-8636-standard-qsfp-qsfp28-management-interface-guide\">SFF-8636<\/a>.<\/p><\/li><li><p><strong>Vendor Compatibility<\/strong>: Compatible with major brands (Cisco, Arista, Dell, HPE\/Aruba, Juniper, Mellanox) for flexible deployment.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Technical Specifications<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 285px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Parameter<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Specification<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Form Factor<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>QSFP+<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Data Rate<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40 Gb\/s<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Transmission Technology<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SWDM4 (4 lanes)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Wavelength Channels<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850 nm \/ 880 nm \/ 910 nm \/ 940 nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Fibre Type<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Multimode Fibre (OM3 \/ OM4)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Connector Type<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Duplex LC\/UPC<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Maximum Link Distance<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>OM3: 240 m, OM4: 350 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Power Consumption<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>&lt; 3.5 W<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Operating Case Temperature<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0 \u00b0C to 70 \u00b0C (Standard)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Standards Compliance<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>QSFP+ MSA, SWDM MSA, IEEE 802.3ba, SFF-8636<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Connector Interface<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>XLPPI electrical interface<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup\/><tbody><tr\/><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"850\" src=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/883b54889ce24d31804bba2557acc9e6.webp\" alt=\"40GBASE\u2011SR for High-Speed Networks\" class=\"wp-image-4394\" srcset=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/883b54889ce24d31804bba2557acc9e6.webp 1200w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/883b54889ce24d31804bba2557acc9e6-300x213.webp 300w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/883b54889ce24d31804bba2557acc9e6-1024x725.webp 1024w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/883b54889ce24d31804bba2557acc9e6-768x544.webp 768w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/883b54889ce24d31804bba2557acc9e6-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Advantages for High-Speed Networks<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >High Bandwidth in a Compact Form<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">With 40 Gb\/s in the compact QSFP+ form factor, the LQ-SW40-SR4C provides high-density port upgrades without sacrificing rack space.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Cost-Efficient Fibre Usage<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Utilising SWDM4 technology enables reuse of existing duplex multimode fibre infrastructure, avoiding expensive re-cabling efforts.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Low Power and Thermal Footprint<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">With typical power consumption under 3.5 W, the module helps minimise cooling requirements and lowers total operational cost.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Interoperability and Standards Compliance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Full compliance with major industry standards and broad vendor compatibility ensure seamless integration in heterogeneous networks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Future-Proof Fibre Infrastructure<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Support for OM3\/OM4 fibre with generous reach makes this module a scalable choice as networking demands increase.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Ideal Applications<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Data-centre spine and leaf switch uplinks<\/p><\/li><li><p>High-performance computing (HPC) and AI\/ML cluster interconnects<\/p><\/li><li><p>Enterprise network upgrades from 10 G to 40 G<\/p><\/li><li><p>Fibre plant refresh cycles and optimisation<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Why Choose LINK-PP<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Rigorous quality assurance and testing programme ensure reliability.<\/p><\/li><li><p>Broad compatibility with major switch vendors reduces vendor-lock-in risk.<\/p><\/li><li><p>Cost-effective design offering low power, high performance and extended reach.<\/p><\/li><li><p>Hot-pluggable QSFP+ form factor for fast deployment and serviceability.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Upgrade your network confidently with the LINK-PP <strong>LQ-SW40-SR4C 40GBASE-SR SWDM4 module<\/strong>. It delivers high-speed, reliable, low-power, and vendor-agnostic performance, making it an ideal solution for data centres, enterprise networks, and server clusters. Future-proof your connectivity with minimal infrastructure changes and maximum performance.<\/p>\n\n\n\n<div class=\"alignnone qc-cover-wrapper has-custom-content-position is-position-center\" elementtype=\"div\" useimagebackground=\"false\" imgbg=\"\" imgbgpositionleft=\"50\" imgbgpositiontop=\"50\" overlay=\"#165DFF\" overlayopacity=\"0.8\" contentposition=\"center\" alt=\"\" parallax=\"false\" style=\"border-radius: 12px; padding-left: var(--qc-preset--spacing--60); padding-right: var(--qc-preset--spacing--60); padding-top: var(--qc-preset--spacing--60); padding-bottom: var(--qc-preset--spacing--60); background-color: rgb(242, 243, 245); height: auto;\"><div class=\"qc-cover-wrapper__inner-container\"><div style=\"flex-wrap: wrap; justify-content: center; display: flex;\"><div colmd=\"10\" class=\"col col-md-10\"><p style=\"text-align: center;\"><span class=\"qc-h1-tag\" style=\"color: rgb(0, 0, 0);\">Discover the LQ-SW40-SR4C<\/span><\/p><p style=\"text-align: center;\"><span class=\"qc-p1-tag\" style=\"color: rgb(0, 0, 0);\">Explore the features and benefits of the LQ-SW40-SR4C 40G QSFP+ module for your network needs.<\/span><\/p><div class=\"qc-buttons-wrapper\"><div justification=\"center\" class=\"qc-buttons-container is-horizontal is-content-justification-center\" style=\"margin-top: var(--qc-preset--spacing--0); margin-bottom: var(--qc-preset--spacing--0); gap: var(--qc-preset--spacing--40);\"><div link=\"https:\/\/www.l-p.com\/products\/491483.htm\" opennewtab=\"false\" width=\"\" outline=\"false\" class=\"qc-button-wrapper\" style=\"\"><a class=\"qc-button-container\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\" target=\"_self\"><span style=\"color: rgb(255, 255, 255);\"><strong>Learn More<\/strong><\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; FAQ<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Q1: Is the LQ-SW40-SR4C compatible with my switches?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A: Yes, it is vendor-agnostic and tested to work with leading brands including Cisco, Arista, Dell, HPE\/Aruba, Juniper, Mellanox, and more.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Q2: What type of fibre does this module support?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A: It supports standard multimode fibre (MMF) types OM3 and OM4 with duplex LC\/UPC connectors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Q3: What is SWDM4 technology?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A: SWDM4 (Short Wavelength Division Multiplexing) transmits four 10\u202fGb\/s signals over duplex multimode fibre using four wavelengths (850\u202fnm \/ 880\u202fnm \/ 910\u202fnm \/ 940\u202fnm), achieving 40\u202fGb\/s aggregate speed efficiently.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Q4: Can I use this module for upgrading existing 10G links?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A: Absolutely. The LQ-SW40-SR4C is ideal for cost-effective 10G-to-40G upgrades without replacing fibre cabling.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Q5: Can I purchase in bulk for large-scale deployments?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A: Yes, LINK-PP offers volume pricing options for data centre or enterprise-scale installations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >&#x25b6; See Also<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/products\/link-pp-100g-transceivers-connectivity\">The Advantages of LINK-PP 100G Transceivers for Fast Connections<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/products\/link-pp-ls-dw2810-40i-dwdm-transceiver\">Overview of LINK-PP LS-DW2810-40I SFP+ 10G DWDM Module<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/products\/qsfp-dd-lr4-transceiver-400g-10km-solution\">Exploring LINK-PP LQD-CW400-LR4C 400G QSFP-DD Optical Solution<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/why-choose-link-pp-fiber-optical-modules\">Reasons to Select LINK-PP Fiber Optical Transceiver Modules<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/the-benefits-of-100g-sfp-dd-lr-optical-transceiver\">Advantages of Using the 100G SFP-DD LR Optical Transceiver<\/a><\/p>\n\n\n\n<script>const link1 = document.createElement('link');link1.rel = 'stylesheet';link1.type = 'text\/css';link1.href = 'https:\/\/statics.quickcreator.io\/static\/theme\/css\/qcb-theme-additional.css';const link2 = document.createElement('link');link2.rel = 'stylesheet';link2.type = 'text\/css';link2.href = 'https:\/\/statics.quickcreator.io\/static\/aaapycm22qmuab44\/theme\/css\/qcb-main-theme.css';document.head.appendChild(link1);document.head.appendChild(link2);<\/script>","protected":false},"excerpt":{"rendered":"<p>Discover the LQ\u2011SW40\u2011SR4C 40GBASE\u2011SR module: high-speed, low-power, QSFP+ optics for multimode fibre networks. Perfect for data centres and network upgrades.<\/p>","protected":false},"author":1,"featured_media":4395,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[18,24,26],"class_list":["post-4396","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-40g-qsfp-transceivers","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/4396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/comments?post=4396"}],"version-history":[{"count":2,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/4396\/revisions"}],"predecessor-version":[{"id":7843,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/4396\/revisions\/7843"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/media\/4395"}],"wp:attachment":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/media?parent=4396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/categories?post=4396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/tags?post=4396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}