400G QSFP-DD CWDM4 EML 6km SMF LC Optical Transceiver

FIBERSTAMP 400G QSFP-DD CWDM4 optical transceiver module is used for medium-distance interconnection in data centers, and complies with IEEE 802.3cu 400GBASE-FR4 Ethernet transmission protocol. The product has a built-in pair of 4-channel CWDM MUX and DEMUX with center wavelengths of 1271nm, 1291nm, 1311nm and 1331nm respectively. It uses a pair of single-mode optical fibers for transmission. The distance can reach up to 6km under the condition of three temperatures.


  • 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
  • Using 1 pair of single-mode optical fiber transmission, the distance can reach up to 6km under the condition of three temperatures, and the maximum link transmission can support 10km
  • 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 Description
FBL-400CLK06C 400GE QSFP-DD CWDM4 EML 6km Optical Transceiver Module

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