The Foxopto 100G QSFP28 LR4 optical transceiver is designed for Data Center 100GBASE-LR4 Ethernet and OTN OTU4 links reach up to 10km over Single-Mode Fiber (SMF). . 4 channels full-duplex transceiver module . 4 cooled LAN-WDM DML transmitter and PIN ROSA . Hot-pluggable QSFP28 form-factor . Internal CDR circuits on both receiver and transmitter channels . Compliant with QSFP28 MSA and IEEE 802.3ba 100GBASE-LR4 . Data rate up to 103.125Gbps or 111.8Gbps . Reach up to 10km over G.652 SMF . Power consumption < 3.5W . Duplex LC receptacles . Operating case temperature range from 0°C to 70°C . 3.3V power supply voltage . RoHS compliant