SiPh 400G QSFP-DD LR4 CWDM 10km Optical Transceiver

GIGALIGHT’s silicon-based 400G QSFP-DD LR4 optical transceiver module is designed for mid-to-long-range interconnections within data centers. It complies with the 100G Lambda MSA 400G-LR4-10 specifications and is also compatible with the IEEE 802.3cu 400GBASE-LR4 Ethernet transmission protocol. This product integrates a pair of 4-channel CWDM MUX and DEMUX, with central wavelengths at 1271nm, 1291nm, 1311nm, and 1331nm, utilizing a pair of single-mode optical fibers. It can reach distances of up to 10km (FEC enabled).


  • An integrated full-duplex transceiver module employing QSFP-DD hot-pluggable form factor.
  • Transmitters and receivers designed with a 4-channel CWDM silicon optics.
  • Each channel supports a maximum transmission rate of 106.25Gbps (100G PAM4).
  • Compliant with QSFP-DD MSA and 100G Lambda MSA 400G-LR4-10 specifications.
  • Compatible with IEEE 802.3cu 400GBASE-LR4 Ethernet transmission protocols.
  • Utilizes a pair of single-mode optical fibers, reaching distances up to 10km (FEC enabled).
  • Power consumption less than 11W.
  • Dual LC optical ports.
  • Operates within a commercial-grade temperature range.
  • Operating voltage of 3.3V.
  • Complies with RoHS environmental standards (lead-free).


P/N Description
GQD-SI401-LR4C SiPh 400GE QSFP-DD LR4 CWDM4 10km Optical Transceiver Module

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