The Finisar FCBGD10CD1C50 100GBASE-SR10 100G Ethernet transceiver is a Duplex CXP transceiver for optical communications, rated for distances up to 50m and a maximum bandwidth of 100Gb/s.
The Finisar FCBN410QB1C25 40GBASE-CR4 transceiver is a Duplex QSFP+ AOC transceiver for optical communications, rated for distances up to 25m and a maximum bandwidth of 40Gbps.
The Finisar FCBN410QB1CX0 40GBASE-CR4 transceiver is a Duplex QSFP+ AOC transceiver for optical communications, rated for distances up to 100m and a maximum bandwidth of 40Gbps.