GIGALIGHT 400G QSFP-DD LR4 optical transceiver module is used for medium and long-distance interconnection in data centers, conforms to the 100G Lambda MSA 400G-LR4-10 specification, and is compatible with IEEE 802.3cu 400GBASE-LR4 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 fiber for transmission, and the distance can reach up to 10km (FEC needs to be turned on).
