Cisco SFP-10G-ER Compatible SFP+ transceiver supports up to 40km over OS2 SMF via an LC duplex connector. This transceiver is compliant with SFF-8431, SFF-8432 and 10GBASE- ER/EW. Digital diagnostics monitoring is available via a 2-wire serial interface, as specified in SFF-8472. Featuring low power consumption, high speed, this 10G SFP+ transceiver is ideal for data center, 10G Ethernet and Fibre Channel etc.