{"id":5417,"date":"2026-05-14T01:44:26","date_gmt":"2026-05-14T01:44:26","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/100g-qsfp28-optical-transceivers-selection-guide\/"},"modified":"2026-05-25T09:12:49","modified_gmt":"2026-05-25T09:12:49","slug":"100g-qsfp28-optical-transceivers-selection-guide","status":"publish","type":"post","link":"https:\/\/lp.szlogic.cn\/ru\/knowledge-center\/100g-qsfp28-optical-transceivers-selection-guide","title":{"rendered":"A Complete Guide to Selecting 100G QSFP28 Optical Transceivers: SR4, LR4, CWDM4 &#038; More"},"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\/a117d9c4ef2b4fb1ba276f80e39727aa.webp\" alt=\"100g qsfp28 transceivers\" class=\"wp-image-5415\" srcset=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a117d9c4ef2b4fb1ba276f80e39727aa.webp 1200w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a117d9c4ef2b4fb1ba276f80e39727aa-300x178.webp 300w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a117d9c4ef2b4fb1ba276f80e39727aa-1024x608.webp 1024w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a117d9c4ef2b4fb1ba276f80e39727aa-768x456.webp 768w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a117d9c4ef2b4fb1ba276f80e39727aa-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"qc-p1-tag\">When you pick a <\/span><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\"><span class=\"qc-p1-tag\"><strong>100G QSFP28 transceiver<\/strong><\/span><\/a><span class=\"qc-p1-tag\">, think about what your network needs. Check important things like compatibility, how far data must travel, fiber type, connector type, where you will use it, and if it will work in the future. Choosing QSFP28 optical transceivers that fit your system helps your network work well and keeps your money safe. <\/span><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\">This definitive guide cuts through the confusion, exploring all major 100G QSFP28 options \u2013 from <\/span><span class=\"qc-p1-tag\"><strong>SR4<\/strong><\/span><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\"> and <\/span><span class=\"qc-p1-tag\"><strong>LR4<\/strong><\/span><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\"> to <\/span><span class=\"qc-p1-tag\"><strong>CWDM4<\/strong><\/span><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\">, <\/span><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/100g-single-lambda-transceivers-benefits-upgrades-performance\"><span class=\"qc-p1-tag\"><strong>Single Lambda<\/strong><\/span><\/a><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\">, and beyond \u2013 helping you make an informed decision for your <\/span><span class=\"qc-p1-tag\"><strong>high-speed connectivity<\/strong><\/span><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\"> needs.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>&#x1f4dd; What is a QSFP28 Optical Module?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"qc-p1-tag\" style=\"color: rgb(64, 64, 64);\">The <strong>QSFP28 (Quad Small Form-factor Pluggable 28)<\/strong> is the industry-standard form factor for 100 Gigabit Ethernet (100GbE) and high-speed data center interconnects. It packs four lanes operating at 25Gbps or a single high-speed lane into a compact, hot-pluggable module.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>&#x1f4dd; Demystifying Your 100G QSFP28 Options: A Technical Breakdown<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px 0px 4px;\"><strong>100G-SR4 (Short Range)<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Parallel multimode fiber (MMF) using 4 lanes (4x25G NRZ).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Up to 70m (OM3 MMF), 100m (OM4 MMF), or 150m (OM5 MMF).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Requires <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/mpo-connectors-differences-8-12-16-24-fiber-comparison\"><strong>MTP\/MPO-12<\/strong><\/a> connector. Uses 4 fibers for Tx and 4 fibers for Rx <strong>(8 fibers total)<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> <strong>Top-of-rack switching<\/strong>, <strong>intra-data center links<\/strong>, server-to-leaf connectivity within racks or rows using <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide\"><strong>multimode fiber cabling<\/strong><\/a>. Cost-effective for short distances.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Model Example:<\/strong> QSFP28-100G-SR4 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473115.htm\"><strong>LQ-M85100-SR4C<\/strong><\/a> (Supports OM3\/OM4\/OM5)<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G-PSM4 (Parallel Single Mode 4 Lane)<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Parallel single-mode fiber <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/what-is-single-mode-fiber-and-how-does-it-work\"><strong>(SMF)<\/strong><\/a> using 4 lanes (4x25G NRZ).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Typically up to 500m over standard SMF.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Requires <strong>MTP\/MPO-12<\/strong> connector. Uses 4 fibers for Tx and 4 fibers for Rx <strong>(8 fibers total)<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> Longer intra-data center or campus links than SR4 allows, where SMF infrastructure is already deployed or preferred for future-proofing. Less common than CWDM4\/LR4 for longer SMF reaches.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G-LR4 \/ ER4 \/ ZR4 (Long\/Extended\/Extended+ Range)<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Coarse Wavelength Division Multiplexing <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/glossary\/what-is-cwdm-understanding-coarse-wavelength-division-multiplexing\"><strong>(CWDM)<\/strong><\/a> over duplex SMF. Combines 4 wavelengths (around 1295, 1300, 1304, 1309nm) onto 2 fibers (1 Tx, 1 Rx). LR4 is standard, ER4 offers extended reach, ZR4 offers longest reach.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Reach:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>LR4:<\/strong> Up to 10km<\/p><\/li><li><p style=\"margin: 0px;\"><strong>ER4:<\/strong> Up to 40km<\/p><\/li><li><p style=\"margin: 0px;\"><strong>ZR4:<\/strong> Up to 80km+<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Uses standard <strong>duplex LC<\/strong> connectors. Requires only 2 fibers.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> <strong>Data center interconnect (DCI)<\/strong>, <strong>metro networks<\/strong>, building-to-building links, aggregation layers. Essential for <strong>long-distance fiber optic transmission<\/strong>. ER4\/ZR4 are for specialized, longer-haul applications.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Model Example:<\/strong> LINK-PP QSFP28-100G-LR4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472118.htm\"><strong>LQ-LW100-LR4C<\/strong><\/a> (10km), LINK-PP QSFP28-100G-ER4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472708.htm\"><strong>LQ-LW100-ER4C<\/strong><\/a> (40km), LINK-PP QSFP28-100G-ZR4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482513.htm\"><strong>LQ-LW100-ZR4C<\/strong><\/a> (80km)<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G-CWDM4<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Similar to LR4, uses <strong>CWDM<\/strong> over duplex SMF but with slightly different wavelengths (1271, 1291, 1311, 1331nm) optimized for lower cost and power consumption.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Up to 2km. Defined by the CWDM4 MSA.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Uses standard <strong>duplex LC<\/strong> connectors. Requires only 2 fibers.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> Cost-effective solution for <strong>intra-data center SMF links<\/strong> up to 2km (e.g., between buildings on a campus, across larger data halls). A popular alternative to PSM4 for duplex SMF.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Model Example:<\/strong> LINK-PP QSFP-100G-CWDM4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472577.htm\"><strong>LQ-CW100-FR4C<\/strong><\/a> (2km)<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G Single Lambda (e.g., FR1\/LR1\/ER1\/DR1\/ZR1)<\/strong><\/p><ul><li><p style=\"margin: 0px 0px 4px;\"><strong>Technology:<\/strong> Uses a <em>single<\/em> high-speed wavelength (e.g., 53.125 Gbaud <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\"><strong>PAM4 modulation<\/strong><\/a>) over duplex SMF. Includes various reaches:<\/p><ul><li><p style=\"margin: 0px;\"><strong>FR1 (2km) \/ LR1 (10km):<\/strong> Common standards.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>DR1 (500m):<\/strong> Often uses 1310nm wavelength.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>ER1 (40km) \/ ZR1 (80km+):<\/strong> Longer reach variants.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Varies (500m, 2km, 10km, 40km, 80km+).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Uses standard <strong>duplex LC<\/strong> connectors. Requires only 2 fibers.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> <strong>Next-generation data center architectures<\/strong>, simplifying fiber plant (only 2 fibers needed per link), preparing for 400G\/800G (which rely heavily on PAM4). Offers <strong>higher port density<\/strong> potential. Key for <strong>future-proof network design<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Model Example:<\/strong> LINK-PP QSFP-100G-DR1 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482616.htm\"><strong>LQ-SM31100-DR1C<\/strong><\/a> (10km).<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G-SWDM4 (Short Wavelength Division Multiplexing)<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Uses wavelength division multiplexing over MMF. Combines 4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/glossary\/overview-of-vcsel\"><strong>VCSEL<\/strong><\/a>-based wavelengths (850, 880, 910, 940nm) onto 2 fibers (1 Tx, 1 Rx).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Up to 75m (OM3), 100m (OM4), 150m (OM5).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Uses standard <strong>duplex LC<\/strong> connectors. Requires only 2 fibers.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> Leveraging existing <strong>LC duplex MMF cabling<\/strong> for 100G, avoiding the need for MTP\/MPO upgrades. Ideal for <strong>fiber migration strategies<\/strong> where duplex MMF is prevalent.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Model Example:<\/strong> LINK-PP QSFP-100G-SWDM4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473140.htm\"><strong>LQ-SW100-SR4C<\/strong><\/a> (100m)<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G Bidirectional (BiDi)<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Uses a <em>single<\/em> strand of fiber. Achieves full duplex 100G by transmitting and receiving on two different wavelengths (e.g., Tx 1330nm \/ Rx 1270nm) over the same fiber.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Typically up to 10km or 20km over SMF.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Uses a <strong>single simplex LC<\/strong> connector. Requires only 1 fiber strand per link.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> <strong>Maximizing existing fiber infrastructure<\/strong> (doubling capacity), <strong>fiber exhaust scenarios<\/strong>, cost-effective upgrades where fiber is scarce. Crucial for <strong>fiber capacity optimization<\/strong>.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>100G\/112G Dual-Rate Modules<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Technology:<\/strong> Hermetic TOSA with <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/glossary\/what-is-lwdm-and-why-important-for-lans\"><strong>LAN-WDM<\/strong><\/a> based DFB 25.78G\/s and 27.95G\/s data rate support.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Reach:<\/strong> Typically up to 10km over SMF<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Type:<\/strong> Uses standard <strong>duplex LC<\/strong> connectors. Requires only 2 fibers.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Best For:<\/strong> 100GBASE-LR4 Ethernet Links, Infiniband QDR and DDR interconnects, Client-side 100G Telecom connections.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Model Example:<\/strong> LINK-PP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/488452.htm\"><strong>LQ-LW112-LR4C<\/strong><\/a>.<\/p><\/li><\/ul><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d7fcaaefde14dedb89f4bc7ecd50005.webp\" alt=\"100g qsfp28 module\" class=\"wp-image-5416\" srcset=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d7fcaaefde14dedb89f4bc7ecd50005.webp 1200w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d7fcaaefde14dedb89f4bc7ecd50005-300x178.webp 300w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d7fcaaefde14dedb89f4bc7ecd50005-1024x608.webp 1024w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d7fcaaefde14dedb89f4bc7ecd50005-768x456.webp 768w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d7fcaaefde14dedb89f4bc7ecd50005-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>100G QSFP28 Transceiver Comparison at a Glance<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Module Type<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Technology<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Wavelength<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Fiber Type &amp; Connector<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Max Reach<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Key Application<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G-SR4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4x25G NRZ (MMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>MMF \/ MPO-12<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>70m-150m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Short Intra-DC, ToR Switching<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G-PSM4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4x25G NRZ (SMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ MPO-12<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>500m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Medium Intra-DC\/Campus (Parallel)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G-LR4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4x25G LWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~1295-1310nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>DCI, Metro, Building Links<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G-ER4\/ZR4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4x25G LWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~1295-1310nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40km \/ 80km+<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Long-Haul DCI, Metro<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G-CWDM4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4x25G CWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1271-1331nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cost-Effective Intra-DC SMF<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G Single Lambda<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1x100G PAM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310nm (e.g.)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>500m-80km+<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Next-Gen DC, Simplified Fiber<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G-SWDM4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4x25G WDM (MMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850-940nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>MMF \/ LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>75m-150m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Leverage Duplex MMF Cabling<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>100G BiDi<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1x100G BiDi<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>e.g., Tx1330\/Rx1270<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ Simplex LC<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10km\/20km\/40km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Fiber Exhaust, Single Strand<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Dual-Rate (e.g., LR4)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100G \/ 112G <\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LAN-WDM, 1295-1309nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF \/ Duplex LC<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Depends on Mode<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Migration, Aggregation Flexibility<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>&#x1f4dd; Choosing the Right LINK-PP QSFP28 Module: Key Considerations<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Required Distance:<\/strong> This is the primary driver (SR4 for &lt;150m MMF, CWDM4 for 2km SMF, LR4 for 10km, etc.).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Infrastructure:<\/strong> What&#8217;s already installed (MMF vs SMF, MPO vs LC duplex\/simplex)? SWDM4 uses duplex MMF, BiDi uses simplex SMF.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Cost:<\/strong> SR4 &amp; CWDM4 are generally lower cost than LR4\/ER4 or Single Lambda. BiDi can save fiber costs.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Power Consumption:<\/strong> CWDM4 and newer PAM4 modules <strong>(Single Lambda)<\/strong> often have lower power than LR4.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Future-Proofing:<\/strong> Single Lambda modules align with 400G\/800G technologies using <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\"><strong>PAM4<\/strong><\/a>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Dual Rate Needs:<\/strong> Do you require 4x25G or 4x28G connectivity now or in the future?<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fiber Capacity:<\/strong> Is fiber scarce? BiDi modules effectively double your fiber capacity.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>&#x1f4dd; Optimize Your 100G Network with Confidence<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting the optimal <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\"><strong>100G QSFP28 transceiver<\/strong><\/a> is fundamental for achieving <strong>high-performance networking<\/strong>, <strong>scalable data center architecture<\/strong>, and <strong>maximizing ROI<\/strong> on your <strong>fiber optic infrastructure<\/strong>. By understanding the strengths of each technology \u2013 from the cost-effective <strong>100G-SR4<\/strong> for racks to the long-haul capabilities of <strong>100G-LR4\/ER4<\/strong>, the fiber-saving magic of <strong>100G-BiDi<\/strong>, or the future-ready <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/100g-single-lambda-transceivers-benefits-upgrades-performance\"><strong>100G Single Lambda (PAM4) modules<\/strong><\/a> \u2013 you can make strategic decisions that align with your specific <strong>network design requirements<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ready to Deploy High-Performance 100G Connectivity?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>LINK-PP offers a comprehensive portfolio of reliable, <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/multi-source-agreements-optical-transceivers\"><strong>MSA-compliant<\/strong><\/a><strong> 100G QSFP28 optical modules<\/strong>, including all the types discussed: <strong>SR4<\/strong>, <strong>LR4<\/strong>, <strong>ER4<\/strong>, <strong>CWDM4<\/strong>, <strong>Single Lambda (DR1\/FR1)<\/strong>, <strong>SWDM4<\/strong>, <strong>BiDi<\/strong>, and <strong>Dual-Rate<\/strong> solutions. Our transceivers are rigorously tested for <strong>interoperability<\/strong> and performance, ensuring seamless integration into your <strong>Cisco<\/strong>, <strong>Arista<\/strong>, <strong>Juniper<\/strong>, <strong>Mellanox<\/strong>, or <strong>Huawei<\/strong> switches and routers.<\/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--50); padding-bottom: var(--qc-preset--spacing--50); background-color: rgb(245, 245, 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: var(--qc-color5);\">LINK-PP Solutions<\/span><\/p><p style=\"text-align: center;\"><strong>Explore the full range of 100G QSFP28 modules today!<\/strong><\/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\/store-27045-100g-qsfp28-sfp-dd.htm\" opennewtab=\"true\" width=\"\" outline=\"false\" class=\"qc-button-wrapper\" style=\"background-color: var(--qc-color1);\"><a class=\"qc-button-container\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\" target=\"_blank\"><span style=\"color: rgb(191, 61, 55);\"><strong>&#x1f50d;Source Now<\/strong><\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>&#x1f4dd; See Also<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/100g-optical-transceiver-form-factors-guide\">100G Optical Transceiver Module Form Factors: CFP, CFP2, CFP4, CXP, QSFP28<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/100g-single-lambda-transceivers-benefits-upgrades-performance\">What You Need to Know About 100G Single Lambda Optics<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/100g-single-lambda-vs-4-channel-optical-modules-comparison\">Comparing 100G Single Lambda and 4 Channel Optical Modules Key Differences<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/psm4-vs-cwdm4-which-optical-transceiver-for-your-network\">PSM4 vs.\u00a0CWDM4 Transceiver: Key Difference Explained<\/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>Choose the best 100g qsfp28 optical transceiver for your network by comparing compatibility, distance, fiber type, and future-proofing options.<\/p>","protected":false},"author":1,"featured_media":5415,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[13],"class_list":["post-5417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-100g-modules"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/5417","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=5417"}],"version-history":[{"count":2,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/5417\/revisions"}],"predecessor-version":[{"id":7572,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/5417\/revisions\/7572"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/media\/5415"}],"wp:attachment":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/media?parent=5417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/categories?post=5417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/tags?post=5417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}