StarTech QSFP-40G-LR4 Comp

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Delivered between 3.3.2026 and 8.4.2026
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Product details

40 Gbit/s | Multimode | MPO | 100m | Lifetime Warranty

The QSFP40GLR4ES is a Dell EMC QSFP-40G-LR4 compatible fiber optic QSFP transceiver module designed, programmed, and tested for use with Dell EMC branded switches and routers. It provides reliable 40 GbE connectivity over fiber optic cables for 40GBase-LR4Q compliant networks with a maximum distance of up to 10 km. Technical specifications:

Wavelength: 1271 nm, 1291 nm, 1311 nm, 1331 nm

Max. Data Rate: 40 Gbit/s

Type: Single Mode

Connector Type: LC Connector

Max. Transmission Distance: 10 km

MTBF: 8,596,956 hours

Power Consumption: < 1.3 W

Digital Diagnostics Monitoring (DDM): Yes

This QSFP fiber module is hot-swappable, allowing for easy upgrades and replacement with minimal network downtime. SFPs from StarTech.com

All SFP and SFP+ transceiver modules come with a lifetime warranty and free technical support in multiple languages for the entire lifespan. StarTech.com offers a wide range of SFP modules and directly attached SFP cables that provide the comfort and reliability you need for stable network performance.

The StarTech.com Advantage

  • 100% guaranteed compatibility with Dell EMC QSFP-40G-LR4
  • Lifetime warranty applies to StarTech.com SFP modules
  • Meets or exceeds OEM specifications and MSA industry standards (Multi-Source Agreement).

Key specifications

Transmission
Multi Mode
Module type
QSFP+
Wavelength
1311 nm
Item number
16688516

General information

Manufacturer
StarTech
Category
Transceivers
Manufacturer no.
QSFP40GLR4ES
Release date
22.9.2021

Colour

Colour
Silver
Exact colour description
Silver

Transceiver properties

Module type
QSFP+
Transmission
Duplex
Wavelength
1311 nm
Max. Transmission range
10000 m
Transmission
Multi Mode
Interface
SFP+
Compatible brands
Dell
Data throughput
40 Gbit/s

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1 piece(s)

Product dimensions

Length
13.90 mm
Width
58.40 mm
Height
12.60 mm
Weight
40 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Transceivers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • StarTech
    Not enough data
  • 1.Aruba
    0 %
  • 1.Cisco
    0 %
  • 3.BlueLAN
    0.2 %
  • 3.Digitus
    0.2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • StarTech
    Not enough data
  • 1.CBO
    0 days
  • 1.TP-Link
    0 days
  • 1.Ubiquiti
    0 days
  • 1.Zyxel
    0 days

Return rate

How often is a product of this brand in the «Transceivers» category returned?

Source: Digitec Galaxus
  • StarTech
    Not enough data
  • 1.SwissGBIC
    1.2 %
  • 2.BlueLAN
    2 %
  • 3.BlueOptics
    2.5 %
  • 4.Cisco
    2.9 %
Source: Digitec Galaxus