{"product_id":"40gbase-lr4-qsfp-optical-transceiver-module-4-pack-10km-reach","title":"40GBASE-LR4 QSFP+ Optical Transceiver Module 4 Pack - 10km Reach","description":"\u003cp\u003eIn this review the OPSTRAN 40GBASE-LR4 QSFP+ Optical Transceiver Module 4 Pack is assessed for network engineers and IT teams who need reliable 40G uplinks over single-mode fiber. The bottom line: this kit is for installations demanding a tested, hot-pluggable QSFP+ solution with DDM diagnostics and a confirmed EEPROM coding approach for compatibility. It stands out because it combines a low power envelope with built-in real time monitoring and a 10km reach, making it a practical option for data center aggregation or campus backbone links where predictable behavior and device-level testing matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40GBASE-LR4 QSFP+:\u003c\/strong\u003e Provides a standardized 40 gigabit Ethernet link suitable for long-reach single-mode fiber up to 10km.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in high performance chip:\u003c\/strong\u003e Helps maintain stable signal integrity and supports the module's prolonged service life under normal commercial conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow power consumption:\u003c\/strong\u003e At a maximum of 3.5W the module keeps heat and power budgets modest in dense QSFP+ deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Time Digital Optical Monitoring:\u003c\/strong\u003e Offers live diagnostics for power, temperature and signal levels to simplify troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEEPROM compatibility lab:\u003c\/strong\u003e Modules are coded and tested for EEPROM requirements with major switch vendors to reduce interoperability surprises.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards compliant:\u003c\/strong\u003e Hot pluggable SFF-8436 QSFP form factor compliant to IEEE 802.3ba and 40GBASE-LR4 standards for broad industry compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis product is aimed at network administrators, systems integrators and data center operators who need a reliable quad-channel 40G transceiver that is tested for compatibility with mainstream switches and routers. The 4 pack format is particularly useful for teams provisioning multiple aggregation or spine ports at once.\u003c\/p\u003e\n\u003cp\u003eThose who require extended temperature range beyond commercial specifications or vendor-backed warranty programs tied to specific OEM parts may want to consider vendor-branded modules or industrial temperature rated alternatives instead.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh interoperability due to targeted device testing and EEPROM coding efforts.\u003c\/li\u003e\n\u003cli\u003eLow maximum power consumption (3.5W) helps in dense QSFP+ deployments.\u003c\/li\u003e\n\u003cli\u003eOnboard DDM provides actionable diagnostics for quick fault isolation.\u003c\/li\u003e\n\u003cli\u003eCompliant QSFP+ form factor and IEEE 802.3ba standards ensure broad support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial temperature range (0 to 70C) may be limiting for unstabilized outdoor or industrial sites.\u003c\/li\u003e\n\u003cli\u003eAs a third-party module, buyers should verify compatibility with specific switch firmware where absolute OEM support is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eQSFP+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e40GBASE-LR4, IEEE 802.3ba\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1310nm (4 CWDM lanes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Reach\u003c\/td\u003e\n\u003ctd\u003e10km on single-mode fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power Consumption\u003c\/td\u003e\n\u003ctd\u003e3.5W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eCommercial 0 to 70C (32 to 158F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eDuplex LC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe OPSTRAN 40GBASE-LR4 QSFP+ 4 Pack is a practical choice for data centers and enterprise networks needing tested, hot-pluggable 40G links with real time diagnostics and modest power use. It delivers strong value for teams provisioning multiple ports while avoiding the compatibility headaches often encountered with generic modules, but those requiring industrial temperature ratings or OEM warranty ties should consider alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these modules hot pluggable?\u003c\/strong\u003e\u003cbr\u003eYes. The modules use the QSFP+ hot pluggable form factor compliant to SFF-8436.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they support monitoring of optical parameters?\u003c\/strong\u003e\u003cbr\u003eYes. Built-in Real Time Digital Optical Monitoring provides diagnostics for power, temperature and signal metrics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the supported fiber type and maximum distance?\u003c\/strong\u003e\u003cbr\u003eThey are designed for single-mode fiber with duplex LC connections and a maximum reach of up to 10km.\u003c\/p\u003e","brand":"OPSTRAN","offers":[{"title":"Default Title","offer_id":48636179251419,"sku":"B09ZQFMHNJ","price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71L-lH7cE3L._SL1500_b7a794f9-8c02-43a1-a18a-b0d4739114bb.jpg?v=1778590180","url":"https:\/\/gearmusthave.com\/products\/40gbase-lr4-qsfp-optical-transceiver-module-4-pack-10km-reach","provider":"GearMustHave","version":"1.0","type":"link"}