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Rectangular QSFP+ transceiver module, matte metal housing, LC duplex port, 1310nm single-mode, 10km reach

Brute Networks

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

SKU CH-K21Q-734DW

A 40 Gbps QSFP+ transceiver for single-mode fibre, reaching 10 km at 1310 nm with LC duplex connectors and full Juniper compatibility

  • Device TypeTransceiver
  • StandardsSMF
  • Wavelength1310nm
  • Fiber CableSingle-mode Optical Fiber
  • Ports40GBase-LR4
  • Max Distance10km
  • 10km reach over single-mode fibre at 1310nm wavelength
  • 40 Gbps transfer rate for high-bandwidth links
  • Operates reliably from 0 to 70 °C commercial temperature
  • MSA-compliant design ensures interoperability with Juniper SRX equipment
  • Digital optical monitoring provides real-time link diagnostics

40 Gbps QSFP+ Transceiver for 10 km Links

This QSFP+ module delivers 40 Gbps over single-mode fibre up to 10 km. It is built for network engineers upgrading Juniper switches or routers that need long-reach connectivity without OEM pricing. The 1310 nm wavelength suits standard single-mode infrastructure.

LC Duplex Connector and Commercial Temperature Range

An LC duplex connector provides the physical link, allowing straightforward patching into existing single-mode cabling. Digital output monitoring gives real-time diagnostics on power and link status. The module operates from 0 to 70 °C, fitting standard data-centre and wiring-closet environments.

Verify QSFP+ Ports and Single-Mode Fibre Before

Confirm your Juniper hardware accepts QSFP+ form-factor transceivers and that the target link uses single-mode fibre with LC terminations. The 10 km reach requires a compatible link budget; shorter runs may need attenuation. Buyers needing multi-mode support or a different reach should select another module.

Highlights

  • 10km reach over single-mode fibre at 1310nm wavelength
  • 40 Gbps transfer rate for high-bandwidth links
  • Operates reliably from 0 to 70 °C commercial temperature
  • MSA-compliant design ensures interoperability with Juniper SRX equipment
  • Digital optical monitoring provides real-time link diagnostics

Specifications

BrandJuniper
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 Juniper.

Questions about this item

Does the 40 Gbps QSFP+ interface support full 40 Gbps throughput over 10 km?

Yes, the 40GBASE-LR4 standard delivers 40 Gbps across 10 km of single-mode fibre using four 10 Gbps lanes at 1310 nm.

What physical connector and fibre type does the module require?

It uses an LC duplex connector and must be paired with single-mode optical fibre patch cords.

How is the transceiver installed and what step is often missed?

Insert the QSFP+ module until it clicks, then attach the LC duplex cables; the step many forget is removing the dust caps from both the module and the fibre ends before linking.

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