8.5G 1000base-lx/lh SFP 1310nm 20KM SFP Optical Transceiver Module High Quality with CE,RoHs,FCC,ISO ... can cooperate with you.WarrantySFP/GBIC/CWDM/DWDM/XFP/SFP+/XENPAK/X2/BIDI SFP&GBIC comes with 3-year warranty from the ... : DHL, FedEx,EMS,TNT, UPS and so on. 8.5G 1000base-LX/LH SFP 1310nm 20KM SFP Optical transceiver