{"product_id":"40gbase-lr4-qsfp-1310nm-10km-optical-transceiver-lr4","title":"40GBASE-LR4 QSFP+ 1310nm 10km Optical Transceiver - LR4","description":"\u003cp\u003eIn this review the OPSTRAN 40GBASE-LR4 QSFP+ module is evaluated for network engineers and IT teams who need a dependable single-mode 40G link up to 10km. The bottom line: this QSFP+ transceiver delivers standards-compliant 40GBASE-LR4 performance with \u003cstrong\u003ebuilt-in digital optical monitoring\u003c\/strong\u003e and a modest 3.5W power draw, making it a practical choice where long-reach fiber, hot-pluggable convenience and device compatibility matter most.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40GBASE-LR4 support:\u003c\/strong\u003e Provides a tested 40 Gbps single-mode connection designed for up to 10km over duplex LC fiber, suitable for long-reach links.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 CWDM lanes:\u003c\/strong\u003e The MUX\/DEMUX design splits signals into four CWDM channels enabling up to 11.2Gbps per channel for stable aggregated throughput.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Time Digital Optical Monitoring:\u003c\/strong\u003e Integrated DDM lets administrators monitor optical power and diagnostics in real time for faster fault isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow power operation:\u003c\/strong\u003e With a maximum power consumption of 3.5W the module minimizes heat output and eases thermal budget concerns in dense switch deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards and form factor compliant:\u003c\/strong\u003e Hot pluggable QSFP+ form factor compliant to SFF-8436, QSFP MSA and IEEE 802.3ba ensures broad interoperability when EEPROM coding matches target switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial temperature rating:\u003c\/strong\u003e Rated for 0 to 70C (32 to 158F) for reliable operation in typical data center and network closet environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe module is aimed at network administrators, enterprise IT teams, and service providers who need a cost-effective 40G single-mode interface for aggregation, spine links, or long-reach server connectivity. Its built-in DDM and standards compliance make it a solid choice where operational visibility and predictability are important.\u003c\/p\u003e\n\u003cp\u003eIt is less suited for extreme temperature environments outside the commercial range or for networks requiring multimode optics; organizations with very specific vendor-locked EEPROM requirements should confirm compatibility via the supplier's compatibility lab before deploying at scale.\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\u003eStandards-compliant QSFP+ design and IEEE 802.3ba electrical interface support broad switch compatibility when properly coded.\u003c\/li\u003e\n\u003cli\u003eBuilt-in DDM provides useful diagnostic data to speed troubleshooting and reduce downtime.\u003c\/li\u003e\n\u003cli\u003eLow maximum power consumption of 3.5W reduces heat and power requirements in dense racks.\u003c\/li\u003e\n\u003cli\u003eTested in targeted switch devices with vendor compatibility checks increases reliability in mixed environments.\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 outdoor or non-climate-controlled sites.\u003c\/li\u003e\n\u003cli\u003eSuccessful operation depends on correct EEPROM coding for some switch vendors, which can require verification.\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 over single-mode fiber (duplex LC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax 3.5W\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\u003eMonitoring\u003c\/td\u003e\n\u003ctd\u003eReal Time Digital Optical Monitoring (DDM)\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+ is a practical, standards-compliant transceiver for teams that need reliable 40G single-mode links up to 10km. With DDM, low power draw and vendor compatibility testing it offers good operational value for data center and enterprise backbone use, provided the deployment stays within commercial temperature limits and EEPROM compatibility is confirmed.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module hot pluggable?\u003c\/strong\u003e\u003cbr\u003eYes. The QSFP+ form factor is hot pluggable so it can be inserted or removed without powering down the host device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat fiber connector does it use?\u003c\/strong\u003e\u003cbr\u003eIt uses duplex LC connectors for single-mode fiber links.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include monitoring features?\u003c\/strong\u003e\u003cbr\u003eYes. The transceiver includes built-in real time digital optical monitoring for diagnostics and optical power reporting.\u003c\/p\u003e","brand":"OPSTRAN","offers":[{"title":"Default Title","offer_id":48239406285019,"sku":"B09RZM8W72","price":199.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61IJoMgymRL._SL1500.jpg?v=1771080755","url":"https:\/\/gearmusthave.com\/products\/40gbase-lr4-qsfp-1310nm-10km-optical-transceiver-lr4","provider":"GearMustHave","version":"1.0","type":"link"}