1.cisco sfp 10g 2.Factory,have stock 3.850nm,300m 4.CE,FCC,UL,SGS,UKAS,RoHS, CISCO ... MSA8.Comply with SDH/SONET9.Comply with IEEE Std 802.3,10.Operation Temperature Range 0~70oC or -40~85oC Optional ... 11.Single +3.3V Power Supply12.RoHS-6 CompliantAdvantages1.Original factory2.Full product ...