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Rectangular QSFP+ transceiver module with MTP/MPO connector, matte metal finish, side label, gold edge contacts

Brute Networks

Brute Networks QSFP-40G-CSR4 40GBASE-CSR4 400m 850nm QSFP+ transceiver

SKU CH-700D-S22SJ

A 40 Gbps QSFP+ transceiver for 400 m multi-mode links at 850 nm with MTP/MPO connector and digital monitoring

  • Device TypeTransceiver
  • StandardsMMF
  • Wavelength850nm
  • Fiber CableMulti-mode Optical Fiber
  • Ports40GBASE-CSR4
  • Max Distance400m
  • 40 Gbps throughput with 400 m reach over multi-mode fibre
  • 850 nm wavelength for short-range data-centre links
  • MTP/MPO connector enables high-density patching
  • Commercial 0–70 °C range suits rack environments
  • Digital output monitoring provides real-time link diagnostics

Brute Networks 40 Gbps QSFP+ Transceiver

This new Brute Networks QSFP+ transceiver delivers 40 Gbps throughput over multi-mode fibre at an 850 nm wavelength. It is built for Cisco equipment and coded for full OEM compatibility. The module reaches 400 metres on OM3 or OM4 cabling and uses an MTP/MPO connector. Digital diagnostic monitoring is supported for real-time link health checks.

Suits Cisco switches and routers needing

Network engineers extending 40 GbE connections within a data centre or campus will find this module a direct, cost-effective fit. It operates across a commercial temperature range of 0 to 70 °C and meets MSA standards for interoperability. Buyers who need single-mode reach, longer distances than 400 metres, or non-Cisco coding should look at other transceiver types.

Verify your gear has QSFP+ ports

Confirm the host device accepts QSFP+ form-factor modules and that its firmware supports third-party optics. Ensure your fibre plant uses multi-mode cable with MTP/MPO terminations rated for the required reach. Check that the switch port configuration matches 40GBASE-CSR4 parameters before installation.

Highlights

  • 40 Gbps throughput with 400 m reach over multi-mode fibre
  • 850 nm wavelength for short-range data-centre links
  • MTP/MPO connector enables high-density patching
  • Commercial 0–70 °C range suits rack environments
  • Digital output monitoring provides real-time link diagnostics

Specifications

BrandCISCO
Model40GBASE-CSR4
Device TypeTransceiver
StandardsMMF
Wavelength850nm
Fiber CableMulti-mode Optical Fiber
Ports40GBASE-CSR4
Max Distance400m
Transfer Rate40 Gbps
LEDsPower, Link/Activity, Full-Duplex, and Speed
Temperature0? ~ 70? C
Weight2 oz.
DisclaimerThird Party product. Part number 40GBASE-CSR4 is property of Cisco.

Questions about this item

Does my switch need a QSFP+ cage to accept the Brute Networks QSFP-40G-CSR4 transceiver?

Yes, the module fits a standard QSFP+ port on a router, switch or server.

Can I mix this 40GBASE-CSR4 module with older 10 Gbps SFP+ transceivers on the same chassis?

The transceiver operates at 40 Gbps over multi-mode fiber; each port negotiates its own speed independently.

Which LED should I watch to confirm the 400 m link is up after installation?

The Link/Activity LED lights when a valid 850 nm signal is detected across the MTP/MPO connection.

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