Accelight ACPC-LR4 optical transceiver is designed for 100G Ethernet links over 10km single mode fiber with a 100GBASE-LR4 compliant optical interface. It is compliant with CFP MSA Hardware Specification and CFP MSA Management Interface Specification. The CFP LR4 transceiver converts 10-lane 10.3Gb/s electrical data streams to 4-lane LAN-WDM 25.78Gb/s optical output signal and 4-lane LAN-WDM 25.78Gb/s optical input signal to 10-lane 10.3Gb/s electrical data streams. This 10-lane 10.3Gb/s electrical signal is fully compliant with IEEE 802.3ba CAUI specification. It contains a duplex LC connector for the optical interface, a 148-pin connector for the electrical interface, and an MDIO interface for module management.