10G DWDM XFP SM (single mode) 1555.75nm/1555.74nm Optical module XFP DWDM Cisco,hp,3com,alcatel compatible Highlight10G SM (single mode) 1555.74nm/1555.75nm 40km LC connectorOptical module XFP DWDM10GBase at 10.3125GbpsCompatible Cisco, HP, 3com, alcatel, Nortel, Extreme... Model DWDM-XFP-EX2740 Data Rate 10G Wavelength 1555.75nm/1555.74 Material DFB Fiber Type SM (single mode) Media Type SMF ...