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StarTech.com Cisco QSFP-40G-CSR4 Compatible QSFP+ Module - 40GBASE-SR4 - 40GE Gigabit Ethernet 40GbE Multimode Fiber MMF Optic Transceiver

$71.99
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None availableas of 09/29/2026

Ships when available. Free shipping on most items when you spend $100 or more.

Special orders typically ship in 1-12 weeks.

Compliance, certifications and origin

  • REACH
  • RoHS
  • WEEE
  • Origin: China
Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

The QSFP-40G-CSR4-ST is a Cisco QSFP-40G-CSR4 compatible fiber transceiver module that has been designed, programmed and tested to work with Arista Networks brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBase-SR4 compliant networks, with a maximum distance of up to 400 m (1312 ft.).

Technical Specifications:

  • Wavelength: 850nm
  • Maximum Data Transfer Rate: 40 Gbps
  • Type: Multi Mode
  • Connection Type: MPO
  • Maximum Transfer Distance: 400 m (1312 ft.)
  • MTBF: 95,832,027 hours
  • Power Consumption: Low power consumption
  • Digital Diagnostics Monitoring (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.

More from the Manufacturer

More from the manufacturer

Technical specifications

General Information

Manufacturer StarTech.com
Manufacturer Part Number QSFP-40G-CSR4-ST
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name Cisco QSFP-40G-CSR4 Compatible QSFP+ Transceiver Module - 40GBase-SR4
Packaged Quantity 1
Product Type QSFP+

Technical Information

Application / Usage Optical NetworkData Networking

Interfaces/Ports

Total Number of Ports 1
Connector Type MPO
Interfaces / Ports Details 1 x MPO 40GBase-SR4 Network

Media & Performance

Media Type Supported Optical Fiber
Fiber Mode Supported Multi-mode
Ethernet Technology 40 Gigabit Ethernet
Network Technology 40GBase-SR4

Physical Characteristics

Form Factor Hot-swappable

Miscellaneous

Compatibility MSA Compliant
Green Compliant Yes
Country of Origin China
Environmental Compliance Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)Restriction of Hazardous Substances (RoHS)Waste Electrical and Electronic Equipment Directive (WEEE)

Warranty

Limited Warranty Lifetime

Ratings and reviews

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

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