Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

StarTech 40 Gigabit Fibre 40GBase-SR4 QSFP+ Transceiver Module - Cisco QSFP-40G-SR4 compatible - MM MPO -

Price in EUR including VAT
Delivered between 26.1.2026 and 23.2.2026
free shipping

Product details

This Cisco-compatible 40GBase-QSFP+ (Quad Small Form-Factor Pluggable) is manufactured by StarTech.com to provide you with what is most important in network connections: reliable performance. This high-quality fiber optic transceiver module has been produced to strict specifications and extensively tested to ensure top performance. It can be installed in Cisco networking devices that support the Cisco QSFP+ transceiver module QSFP-40G-SR4, as well as in devices from other reputable network hardware manufacturers.

With strong performance across four lanes, this 40GBase-SR4-QSFP+ offers 40-gigabit connectivity over multimode fiber with an optical wavelength of 850 nm and a range of up to 150 m. This provides a reliable and cost-effective way to replace or upgrade the ports of your networking devices. This product is designed for dependable network performance.

Key specifications

Transmission
Multi Mode
Module type
QSFP+
Wavelength
850 nm
Item number
10184444

General information

Manufacturer
StarTech
Category
Transceivers
Manufacturer no.
QSFP40GSR4ST
Release date
29.11.2018

Colour

Colour
Silver
Exact colour description
Silver

Transceiver properties

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

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1 piece(s)

Product dimensions

Length
72 mm
Width
18.40 mm
Height
13 mm
Weight
40 g

Legal Notice

Product Safety

14-day cancellation right
30-day right of return
24 Months statutory warranty
Report concern

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

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

Source: Galaxus
  • StarTech
    Not enough data
  • 1.Aruba
    0 %
  • 1.Cisco
    0 %
  • 3.BlueLAN
    0,2 %
  • 3.Digitus
    0,2 %

Statutory 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: Galaxus
  • StarTech
    Not enough data
  • 1.CBO
    0 days
  • 1.Ubiquiti
    0 days
  • 1.Zyxel
    0 days
  • Aruba
    Not enough data

Return rate

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

Source: Galaxus
  • StarTech
    Not enough data
  • 1.SwissGBIC
    1,2 %
  • 2.BlueLAN
    2,1 %
  • 3.BlueOptics
    2,5 %
  • 4.Cisco
    2,9 %
Source: Galaxus