400G QSFP-DD FR4 EML CWDM4 2km SMF LC Optical Transceiver

FIBERSTAMP 400G QSFP-DD FR4 optical transceiver module adopts single-wavelength 100G PAM4 and silicon photonics integration technology, which is widely used in 400GBASE-FR4 Ethernet links, and the transmission distance can reach up to 2km.


  • Full-duplex transceiver integrated module in QSFP-DD hot-pluggable package
  • 4-channel CWDM EML and PIN
  • The transmission rate per channel can reach up to 106.25Gbps (100G PAM4)
  • Compliant with QSFP-DD MSA and IEEE 802.3cu 400GBASE-LR4-6 and 100G
  • Lambda MSA 400G-LR4-10 standards
  • Utilizes a single pair of single-mode optical fibers, supporting distances of up to 2km
  • Power consumption is less than 10W
  • Dual LC optical port
  • Commercial grade operating temperature range
  • Power supply voltage 3.3V
  • Comply with RoHS environmental protection standard (lead-free)
P/N & Data Sheet Description
FBL-400C4K02C 400G QSFP-DD FR4 Optical Module

Additional Information


Form Factor

Media Type


Product Type





Get A Quote and Free Consultation