... of optical transceivers from 155M to 40G, including SFP, GBIC, SFP+, XENPAK, X2 , XFP, BIDI,CWDM,DWDM and other special transceiver modules. Features:1 ... .1.25Gb/s bi-directional data links2.Hot-pluggable SFP footprint3.sfp transceiver Cat 5 cable 4. RJ45 Connector 5.COPPER ... 25 Gigabit Ethernet over Cat 5 cable100BASE TX Copper SFP Transceiver supports the SFP basedWe also have a lot of cisco products ...