SFP Gigabit Ethernet, MM, 1000SX, 550m, 850nm, LC dplx, DDM The BlueOptics© BO05C856S5 Small Form-Factor Pluggable (SFP) transceiver with LC Duplex connector from CBO is designed for short-range multimode Gigabit Ethernet (GbE), Gigabit Fibre Channel over Ethernet (GB FCoE) applications of up to 1.25 Gigabit per second. BlueOptics© SFP Transceiver