{"product_id":"100g-qsfp28-psm4-optical-transceiver-module-500m-single-mode","title":"100G QSFP28 PSM4 Optical Transceiver Module - 500m Single Mode","description":"\u003cp\u003eIn this review the FiberMall QSFP28-100G-PSM4 module is assessed as a cost-conscious option for 100GBASE links in data centers and distribution cores. The bottom line: it is best for engineers who need a standards-compliant, hot-pluggable 100Gbps optics option with MTP\/MPO termination and digital diagnostics. The reviewer found the module reliable for short single-mode distances up to 500m at 1310nm and appreciated the QSFP28 MSA and IEEE 802.3bm compatibility that makes integration straightforward across compliant gear.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100Gbps aggregate:\u003c\/strong\u003e Four independent 25Gb\/s channels provide full 100G throughput for high-density links in switches and servers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePSM4 single-mode design:\u003c\/strong\u003e Uses a 1310nm wavelength and MTP\/MPO-12 connector to reach up to 500m over single mode fiber for campus and short metro links.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards compliance:\u003c\/strong\u003e Fully compatible with QSFP28 MSA and IEEE 802.3bm 100GBASE-PSM4, easing interoperability with compliant Cisco-labeled and other vendor equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot pluggable with DDM:\u003c\/strong\u003e Hot-swap capability and digital diagnostics monitoring via I2C let technicians check link and optical status without downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow power:\u003c\/strong\u003e Typical maximum power consumption around 3.5W helps limit heat in dense rack deployments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe FiberMall QSFP28-100G-PSM4 is aimed at network engineers and operations teams who need a standards-based, lower-cost alternative for 100G links using MTP\/MPO terminated single mode fiber. It is useful in data center spine and leaf deployments, high-performance computing environments, and enterprise core links where 500m reach is sufficient.\u003c\/p\u003e\n\u003cp\u003eIt is not for users who require extended single-mode distances beyond 500m or specialized vendor-proprietary optics. If you need multimode connectivity, different wavelengths, or vendor-locked modules with extended warranty terms, consider other optics designed for those specific needs.\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 QSFP28 module that interoperates with IEEE 802.3bm 100GBASE-PSM4 equipment.\u003c\/li\u003e\n\u003cli\u003eSupports digital diagnostics monitoring (DDM) for real-time status and easier troubleshooting.\u003c\/li\u003e\n\u003cli\u003eHot pluggable and compact QSFP28 form factor for high-density 100G deployments.\u003c\/li\u003e\n\u003cli\u003eLow power consumption suitable for dense switch linecards and chassis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for single mode 1310nm reach up to 500m, so it is not suitable for longer metro distances without an alternate transceiver.\u003c\/li\u003e\n\u003cli\u003eCompatibility depends on host support for MSA-compliant optics; some vendor platforms may 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\u003eQSFP28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol\u003c\/td\u003e\n\u003ctd\u003e100GBASE-PSM4 (IEEE 802.3bm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e1310nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReach\u003c\/td\u003e\n\u003ctd\u003eUp to 500m on single mode fiber (SMF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eMTP\/MPO-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003eMaximum ~3.5W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eDigital diagnostics (DDM) via I2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe FiberMall QSFP28-100G-PSM4 is a practical, standards-compliant 100G transceiver for teams that need reliable single-mode links up to 500m without vendor lock-in. It offers essential diagnostics, low power use, and QSFP28 interoperability at a value that makes it a sensible choice for data center and enterprise core upgrades where PSM4 is the required profile.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this work in Cisco QSFP slots?\u003c\/strong\u003e\u003cbr\u003eYes, the module is designed to be compatible with QSFP-100G-PSM4-S and other equipment that accepts QSFP28 MSA-compliant transceivers, but always verify host firmware allows third-party optics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat fiber connector is required?\u003c\/strong\u003e\u003cbr\u003eIt uses an MTP\/MPO-12 connector for parallel single mode fiber links terminated for PSM4.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it provide monitoring data?\u003c\/strong\u003e\u003cbr\u003eYes, digital diagnostics monitoring (DDM) is available via the QSFP28 I2C interface for optical and electrical parameters.\u003c\/p\u003e","brand":"fiber mall","offers":[{"title":"Default Title","offer_id":48632784158939,"sku":"B0915PVKZF","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61KDiWQsqJL._SL1500.jpg?v=1778452838","url":"https:\/\/gearmusthave.com\/products\/100g-qsfp28-psm4-optical-transceiver-module-500m-single-mode","provider":"GearMustHave","version":"1.0","type":"link"}