StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4 - 40GE Gigabit Ethernet QSFP+ 40GbE Single Mode Fiber (SMF) Optic Transceiver 10km DDM

StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4 - 40GE Gigabit Ethernet QSFP+ 40GbE Single Mode Fiber (SMF) Optic Transceiver 10km DDM

  • $ 1,578.99

We currently have 48 in stock.
SKU: MPN: QSFP40LR4ST UPC:
Product Description

The QSFP40LR4ST is an MSA compliant fiber QSFP+ transceiver that's designed, programmed and tested to work with 40GBASE-LR4 compatible MSA switches and routers. The QSFP+ transceiver module supports a maximum distance of up to 10 km (6.2 mi) and delivers dependable 40 GbE connectivity over fiber cabling.

Technical Specifications:

  • Wavelength: 1270nm to 1330nm
  • Maximum Data Transfer Rate: 40 Gbps
  • Type: Single Mode Fiber
  • Connection Type: LC Connector
  • Maximum Transfer Distance: 10 km (6.2 mi)
  • MTBF: 1,489,426 hours
  • Power Consumption: Less than 2.5 Watts
  • DDM: Yes

This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions.

StarTech.com SFPs

All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP Cables, providing the convenience and reliability you need to ensure dependable network performance.


  • WORKS WITH MSA COMPLIANT SWITCHES: Works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules
  • LIFETIME WARRANTY: Backed by a lifetime warranty on the life of the module itself and not the life of your switch; our modules won't void your OEM warranty and supported by our Tech Advisors 5/24
  • TESTED FOR COMPATIBILITY: Hot-swappable in MSA Compliant routers and switches; DDM support reports the transceiver's status to most SNMP network management tools.
  • TECHNICAL SPECS: 40GBASE-LR4
  • 40Gbps
  • Single Mode (SMF)
  • LC Connector
  • 1270nm to 1330nm
  • Digital Diagnostic Monitoring (DDM)
  • Distances up to 10km (6.2mi)
  • 100% MSA UNCODED QSFP+ TRANSCEIVER: Designed, programmed and tested to work with compatible MSA Compliant switches and routers to deliver dependable 40GbE connectivity

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The QSFP40LR4ST is an MSA compliant fiber QSFP+ transceiver that's designed, programmed and tested to work with 40GBASE-LR4 compatible MSA switches and routers. The QSFP+ transceiver module supports a maximum distance of up to 10 km (6.2 mi) and delivers dependable 40 GbE connectivity over fiber cabling.

Technical Specifications:

  • Wavelength: 1270nm to 1330nm
  • Maximum Data Transfer Rate: 40 Gbps
  • Type: Single Mode Fiber
  • Connection Type: LC Connector
  • Maximum Transfer Distance: 10 km (6.2 mi)
  • MTBF: 1,489,426 hours
  • Power Consumption: Less than 2.5 Watts
  • DDM: Yes

This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions.

StarTech.com SFPs

All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP Cables, providing the convenience and reliability you need to ensure dependable network performance.


  • WORKS WITH MSA COMPLIANT SWITCHES: Works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules
  • LIFETIME WARRANTY: Backed by a lifetime warranty on the life of the module itself and not the life of your switch; our modules won't void your OEM warranty and supported by our Tech Advisors 5/24
  • TESTED FOR COMPATIBILITY: Hot-swappable in MSA Compliant routers and switches; DDM support reports the transceiver's status to most SNMP network management tools.
  • TECHNICAL SPECS: 40GBASE-LR4
  • 40Gbps
  • Single Mode (SMF)
  • LC Connector
  • 1270nm to 1330nm
  • Digital Diagnostic Monitoring (DDM)
  • Distances up to 10km (6.2mi)
  • 100% MSA UNCODED QSFP+ TRANSCEIVER: Designed, programmed and tested to work with compatible MSA Compliant switches and routers to deliver dependable 40GbE connectivity