XFP Multiprotocol 10Gbps DWDM Transceiver, DWDM Single Mode LC, high link budget 23dB, 40km Amplified (OSNR) Applications, nn: ITU C-Band Channel 17-60, SONET OC-192, SDH STM S-64.2b/S-64.3b, 10GBASE-ER/EW + FEC, 10G Fibre Channel