100GBASE-ER4 QSFP28 1310nm 40km DOM Duplex LC SMF Optical Transceiver Module
The EN-QSFP28-ER4 is a long range single-mode 100G QSFP28 optical module compatible with the 100GBase-ER4 specifications. It uses 4 LAN-WDM 25G lasers running 1290~1310nm and combining them through a built-in mux/demux. Each wavelength has 25Gbps for a total speed of 100G available on the QSFP28 interface. Unit can reach up to 40Km distances on G.652 types of SMF.