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Click to enlarge QSFP40LR4ST
QSFP40LR4ST  StarTech.com ®  
StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4 - 40GE Gigabit Ethernet QSFP+ 40GbE Single Mode Fiber (SMF) Optic Transceiver 10km DDM - MSA Uncoded QSFP+ - 40GBASE-LR4 40Gbps - 40GbE Module - 40GE Gigabit Ethernet QSFP+ 1270nm to 1330nm Single Mode (
Type: QSFP+
Condition: New Retail Box (Only available for shipment within the Continental United States)
Our Price: $1,616.64
Final Price: $1,616.64
Quantity: of 32 available for Special Order  
Quantities greater than what is in stock will need to be back-ordered.
** This item is a SPECIAL ORDER item and does not include Express Technology's standard warranty and terms. Click here to review our complete Special Order Policy & Terms.
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Inventory updated on date: May 08, 2024 1:00:00 AM
Product Details for QSFP40LR4ST
QSFP40LR4ST: StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4 - 40GE Gigabit Ethernet QSFP+ 40GbE Single Mode Fiber (SMF) Optic Transceiver 10km DDM - MSA Uncoded QSFP+ - 40GBASE-LR4 40Gbps - 40GbE Module - 40GE Gigabit Ethernet QSFP+ 1270nm to 1330nm Single Mode (
Technical Details
Application/Usage
Optical NetworkData Networking
Product Type QSFP+
Compatibility MSA Compliant
Manufacturer Part Number QSFP40LR4ST
Manufacturer Website Address http://www.startech.com
Marketing Information

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.

Packaged Quantity 1
Interfaces/Ports Details 1 x LC Duplex 40GBase-LR4 Network
Limited Warranty Lifetime
Weight (Approximate) 0.09 lb
Connector Type LC
Form Factor Hot-swappable
Manufacturer StarTech.com
Product Name QSFP+ Module
Network Technology 40GBase-LR4
Brand Name StarTech.com
Country of Origin China
Height 0.5"
Width 0.7"
Depth 2.8"
Environmentally Friendly Yes
Ethernet Technology 40 Gigabit Ethernet
Media Type Supported Optical Fiber
Fiber Mode Supported Single-mode
Total Number of Ports 1
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