... 850nm, 1310nm, 1550n 1.25Gbps SFP Optical Transceiver, 40km Reach FeaturesDual data-rate of 1.25Gbps/1.063Gbps operation1310nm FP laser ... /Server interfaceOther optical transmission systems* Professional supply: SFP,GBIC,BIDI SFP,XFP,SFP+,X2 and XENPAK,CWDM,DWDM. ... Quality with CE,RoHs,FCC,ISO certificate. 1.25G 1000BASE-LH SFP 1310nm 40km SFP fiber transceiver module 100% cisco compatible