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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

  • Port count40GBase-LR4
  • Product typeTransceiver
  • Supported standardsSMF
  • Optical wavelength1310 nm
  • Fiber modeSingle-mode Optical Fiber
  • Maximum range10km
  • 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.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $405.99
Pricier than about 80% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameArista
Model name40GBASE-LR4
Product typeTransceiver
Performance
Transfer speed40 Gbit/s
Connectivity
Supported standardsSMF
Optical wavelength1310 nm
Fiber modeSingle-mode Optical Fiber
Maximum range10km
Ports & slots
Port count40GBase-LR4
Size & build
Product weight2 oz
Environment & compliance
Temperature range0? ~ 70? C
More details
Indicator lightsPower, Link/Activity, Full-Duplex, and Speed

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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