Dell EMC QSFP-40G-ESR4 Comp QSFP+ MM Module Dell EMC QSFP-40G-ESR4 Comp QSFP+ MM Module
Hurry, only 2 left in stock!
Standard: 1-3 working days
Key features
  • 100% Compatibility with Dell EMC QSFP-40G-ESR4 guaranteed
  • SFP modules are backed by a lifetime warranty
  • Meets or exceeds OEM specifications and Multi-Source Agreement (MSA) industry standards
  • Low power consumption
  • Hot-swappable with fiber-optic modules
Product codes

Products frequently bought together


Product Description


The QSFP40GESR4E is a Dell EMC QSFP-40G-ESR4 compatible fiber transceiver module that has been designed, programmed and tested to work with Dell EMC 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.).

This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance.



Product Description Dell EMC QSFP-40G-ESR4 Compatible QSFP+ Module, 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet QSFP+, MPO Connector, 400m, 850nm, DDM, 40Gbps - Lifetime Warranty (QSFP40GESR4E) - QSFP+ transceiver module - 40 Gigabit LAN
Device Type QSFP+ transceiver module - MPO multi-mode
Form Factor Plug-in module
Cabling Type 40GBASE-SR4
Data Transfer Rate 40 Gbps
Optical Wave Length 850 nm
Data Link Protocol 40 Gigabit LAN
Max Transfer Distance 400 m
OEM Manufacturer Equivalent Part Number Dell EMC QSFP-40G-ESR4
Dimensions (WxDxH) 5.84 cm x 1.39 cm x 1.26 cm
Weight 40 g
Manufacturer Warranty Limited lifetime warranty

Find similar


Not quite found what you are looking for? You can find products which may be more suitable by simply checking the features that interest you and clicking the find button.

Need it in a hurry?
Express delivery available on selected items
Over 15,000 products
The latest technology from the biggest brands
UK customer service
Our people are on hand Mon to Fri 9am - 5pm
Over 25 years of experience
Trusted by customers for over two decades Dell EMC QSFP-40G-ESR4 Comp QSFP+ MM Module