This product is a 400Gb/s QSFP-DD 400G is a high-performance, low-cost transceiver with duplex LC
connector, which supports transmission distance up to 2km over SM fiber. On the transmitter side, the
module converts 8 channels of 50Gbps (PAM4) electrical input data to 4 channels of CWDM optical
signals and multiplexes them into a single channel for 400Gbps optical transmission.
On the receiver side, the module optically de-multiplexes a 400Gbps optical input into 4 channels of
CWDM optical signals and converts them to 8 channels of 50Gbps (PAM4) electrical output data. The
module incorporates 4 independent channels on CWDM4 1271/1291/1311/1331nm center wavelength,
operating at 100G per channel.