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Rectangular QSFP+ transceiver module with light grey metal housing and MTP/MPO port

Brute Networks

Brute Networks QSFP-40G-SR4-S 40 Gbps 150 m 850 nm MMF QSFP+ SFP transceiver

SKU CH-7B5M-NM6ZK

A 40 Gbps QSFP+ transceiver for 150 m multi-mode links at 850 nm with an MTP/MPO connector

  • Device TypeTransceiver
  • StandardsMMF
  • Wavelength850nm
  • Fiber CableMulti-mode Optical Fiber
  • Ports40GBase-SR4
  • Max Distance150m
  • 40 Gbps throughput over 150 m multi-mode fibre
  • 850 nm wavelength optimised for short-range data centre links
  • MTP/MPO connector enables high-density patching
  • Digital monitoring provides real-time link diagnostics
  • Commercial 0–70 °C rating suits standard rack environments

QSFP+ transceiver for 40 Gbps links

This QSFP+ transceiver delivers 40 Gbps over multi-mode fibre at 850 nm with a reach of 150 m. It uses an MTP/MPO connector and is coded for full Cisco compatibility. The module meets MSA standards and includes digital output monitoring. Commercial temperature rating covers 0 to 70 C.

Suited for Cisco switches needing 40G SR4

Network teams extending 40 Gbps links inside data-centre racks or campus closets will find this module a direct fit. Buyers who need longer reach, single-mode fibre, or a different vendor coding should look at other modules. The 150 m limit also rules out cross-building runs.

150 m reach at 850 nm over MMF

The 150 m maximum distance on multi-mode fibre at 850 nm is the single figure that decides fit. If the planned link exceeds 150 m, this transceiver will not work and a longer-reach or single-mode alternative is required.

Highlights

  • 40 Gbps throughput over 150 m multi-mode fibre
  • 850 nm wavelength optimised for short-range data centre links
  • MTP/MPO connector enables high-density patching
  • Digital monitoring provides real-time link diagnostics
  • Commercial 0–70 °C rating suits standard rack environments

Specifications

BrandCISCO
Model40GBASE-SR4
Device TypeTransceiver
StandardsMMF
Wavelength850nm
Fiber CableMulti-mode Optical Fiber
Ports40GBase-SR4
Max Distance150m
Transfer Rate40 Gbps
LEDsPower, Link/Activity, Full-Duplex, and Speed
Temperature0? ~ 70? C
Weight2 oz.
DisclaimerThird Party product. Part number 40GBASE-SR4 is property of Cisco.

Questions about this item

How do I install the Brute Networks QSFP-40G-SR4-S and what step is often missed?

Insert the module into a QSFP+ slot until it clicks, then connect the MTP/MPO cable with the correct polarity so that Tx and Rx fibres match at both ends.

What maintenance or replacement will the 850 nm MMF transceiver need later?

Clean the MTP/MPO connector end-faces with a lint-free wipe and isopropyl alcohol whenever links show errors; the module itself has no user-serviceable parts.

What limit appears first on the 40 Gbps link during sustained use?

The 150 metre reach on multi-mode fibre is the primary distance constraint; the commercial temperature rating of 0 to 70 °C defines the operating envelope.

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