2.5Gbps SFP Optical Transceiver, 2km Reach Fibertower Communications Base Info Model NO.:FSP3148-O2xxTrademark:FibertowerOrigin:ChinaHS Code:85177060 Description Pre:SFP Optical Transceiver, 20km Reach Next:155Mbps SFP Optical Transceiver, 2km Reach