Cablexa QSFP+, 40Gb/s, 40GBASE-LR4, SMF, 1310nm Band, Duplex LC, 10KM Transceiver Module

Manufacturer: Cablexa
Part Number: QSFP-40G-LR4-10KM
Availability: In Stock
Ships: Usually in 2 days
Price: $1,450.00

Available Options




  • 10km reach on Single mode fiber
  • Compliant with QSFP+ MSA module form factor
  • Compliant with IEEE 802.3ba*40Gbase-LR4,4x10G 1271, 1291, 1311, 1331nm CWDM DFB 4x10G Electrical I/O (XLPPI)
  • Operating case temperature 0°C to +70°C
  • Power consumption <3.5 W
  • Duplex LC receptacle optical interface(2 Fiber)
  • Digital diagnostic function


  • 40G Ethernet links
  • Digital diagnostic function
  • Infiniband QDR and DDR interconnects
  • Client-side 40G Telecom connections


  • Part Number: QSFP-40G-LR4-10KM
  • Product Type: Transceiver Module
  • Form Factor: QSFP+
  • Data Rate (max): 41.2Gb/s
  • Distance (max): 10KM
  • Transmitter: CWDM DFB
  • Receiver: PIN
  • Digital Diagnostic: Yes
  • Connector: Duplex LC
  • Cable Type: SMF
  • Wavelength: 1310nm Band
  • Operating Temperature: 0 to 70°C (32 to 158°F)


  • Cablexa Logo (Default)
  • Generic Label
  • Custom Label

This QSFP-40G-LR4-10KM is marked and labelled with Cablexa brand as default. Customized labelling and branding are available as request.


Cablexa offers 5-year limited warranty on this QSFP-40G-LR4-10KM optical transceiver module.

Quality Guarantee

Cablexa offers a large selection of optical transceivers that are compatible with all the major brands. We also carry transceivers in various form factors to meet your networking needs. Now you have a reliable, compatible and affordable means to expand your network while maintaining its integrity. All of Cablexa's transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance.

This Cablexa QSFP+, 40Gb/s, 40GBASE-LR4, SMF, 1310nm Band, Duplex LC, 10KM Transceiver Module is 100% MSA compliant. It is guaranteed compatible with your router or switch. And it comes with a 5-year warranty and lifetime technical support. If you have any questions about this QSFP-40G-LR4-10KM transceiver module or any other item, feel free to contact us.