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Small rectangular QSFP+ transceiver module with matte metal casing and LC duplex port visible

Brute Networks

Brute Networks 40GBASE-LR4 QSFP+ 10km 1310nm SMF

SKU CH-C4X0-21ZC6

A 40 Gbps QSFP+ transceiver for single-mode fibre at 1310 nm with 10 km reach

  • Device TypeTransceiver
  • StandardsSMF
  • Wavelength1310nm
  • Fiber CableSingle-mode Optical Fiber
  • Ports40GBase-LR4
  • Max Distance10km
  • 40 Gbps throughput for high-density links
  • 10 km reach over single-mode fibre at 1310 nm
  • LC duplex connector for standard patching
  • Digital optical monitoring for real-time link health
  • Commercial 0–70 °C rating for rack environments

40GBASE-LR4 10km QSFP+ Transceiver

This QSFP+ transceiver delivers 40 Gbps over single-mode fibre at 1310nm with a reach of 10km. It is built for Arista switches and routers and complies with MSA standards for multi-vendor interoperability. Digital output monitoring is supported for real-time link diagnostics.

LC duplex single-mode patch cords

Verify that your switch or router has an open QSFP+ cage and runs firmware that accepts third-party modules coded for Arista. You will need LC duplex single-mode patch cables rated for the 10km distance. Confirm the operating temperature range of 0 to 70°C matches your rack environment.

Hot-pluggable module for 40G uplinks

The transceiver inserts directly into a QSFP+ slot without powering down the chassis, freeing a 40G uplink for spine-leaf fabrics or data-centre interconnects. MSA compliance allows it to operate alongside OEM or other third-party optics in the same chassis. Commercial temperature rating suits standard indoor deployments.

Highlights

  • 40 Gbps throughput for high-density links
  • 10 km reach over single-mode fibre at 1310 nm
  • LC duplex connector for standard patching
  • Digital optical monitoring for real-time link health
  • Commercial 0–70 °C rating for rack environments

Specifications

BrandArista
Model40GBASE-LR4
Device TypeTransceiver
StandardsSMF
Wavelength1310nm
Fiber CableSingle-mode Optical Fiber
Ports40GBase-LR4
Max Distance10km
Transfer Rate40 Gbps
LEDsPower, Link/Activity, Full-Duplex, and Speed
Temperature0? ~ 70? C
Weight2 oz.
DisclaimerThird Party product. Part number 40GBASE-LR4 is property of Arista.

Questions about this item

Does the Brute Networks 40GBASE-LR4 module ship with LC duplex patch cables or must they be purchased separately?

The transceiver includes an LC duplex connector interface; single-mode patch cables are not included and must be sourced separately to match your link distance.

The listing shows a single 40 Gbps 10 km version — are there alternative reaches or wavelengths for this Arista-compatible QSFP+?

This specific module is built for 10 km reach at 1310 nm; other reaches or wavelengths would require a different part number.

What does the 40 Gbps rating mean for actual throughput when the transceiver is installed in an Arista switch?

The 40 Gbps line rate delivers full-duplex 40 Gbps aggregate bandwidth with digital diagnostic monitoring active across the 10 km single-mode link.

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