400G Transceiver Series

400G QSFP-DD FR4  2km SMF Duplex LC Optical Transceiver Module
P/N HSD1-400-FR-C4S


・ Compliant to QSFP-DD MSA rev.5.0
・ Compliant with 100G Lambda MSA
・ 802.3cu compliant
・ Compliant with 400GE FR4 specification
・ Compliant with QSFP-DD CMIS4.0 management interface
・ Non-hermetic package design
・ Design incorporates 4 CWDM lanes MUX/DEMUX
・ 8×53.125Gbits/s PAM4 electrical interface (400GAUI-8)
・ Maximum power consumption 12W
・ Duplex LC connector included
・ Aggregate bit rate of 425 Gbit/sec
・ Transmission up to 2km on single-mode fiber with FEC
・ Single 3.3 V power supply required
・ Compliant with RoHS 2


・ 400G Ethernet
・ Data center network


The HSD1-400-FR-C4S is a transceiver module designed for 2km optical communication applications, and it complies with the 100G Lambda MSA standard. This module converts 8-channel 53.125 Gbit/s electrical data into 4-channel 106.25 Gbit/s optical signals, and multiplexes them into a single channel for 425 Gbit/s optical transmission. Similarly, on the receiver side, it optically de-multiplexes a 425 Gbit/s input into 4-channel signals and converts them into 8-channel output electrical data. The module has been designed to withstand harsh operating conditions, including temperature, humidity, and EMI interference. This module offers high functionality and feature integration, accessible via the I2C interface.