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Restock 22-Jun-2026 Estimated, Out of Stock Prices are Estimated.

€56.37 Incl Vat




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Overview

Range/Series Overview


IMPORTANT: This Range/Series overview section describes the range of which this product belongs. Features of different versions might be mentioned and may not apply to the specific product on this page. Please view Specs for specification of product.

40 Gbps | Multi Mode Fiber | MPO | 400 m (1312 ft.) | Lifetime Warranty. 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.).

Technical Specifications:

Wavelength: 850nm

Maximum Data Transfer Rate: 40 Gbps

Type: Multi Mode Fiber

Connection Type: MPO

Maximum Transfer Distance: 400 m (1312 ft.)

MTBF: 45,017,120 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.


Specification Summary

Product Description
Startech 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 - 40GbE
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
40GbE
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

Specifications

EAN / GTIN:
0065030884242
General
Device Type
QSFP+ transceiver module
Form Factor
Plug-in module
Networking
Connectivity Technology
Wired
Cabling Type
40GBASE-SR4
Data Link Protocol
40GbE
Data Transfer Rate
40 Gbps
Optical Wave Length
850 nm
Max Transfer Distance
400 m
Features
Full duplex mode, Digital Diagnostics Monitoring (DDM)
Expansion / Connectivity
Interfaces
1 x Ethernet 40GBASE-SR4 - MPO multi-mode female
Miscellaneous
MTBF
45,017,120 hours
Compliant Standards
UL, FCC, RoHS, REACH, MSA
OEM Manufacturer Equivalent Part Number
Dell EMC QSFP-40G-ESR4
Dimensions & Weight
Width
5.84 cm
Depth
1.39 cm
Height
1.26 cm
Weight
40 g
Dimensions & Weight (Shipping)
Shipping Width
12 cm
Shipping Depth
20.5 cm
Shipping Height
35 cm
Shipping Weight
60 g
Manufacturer Warranty
Service & Support
Limited warranty - lifetime

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