The SFP-GB-T1 are 1.25Gbps Copper Small Form Pluggable (SFP) transceivers that comply with the Gigabit Ethernet and 1000-BASE-T standards as specified in IEEE 802.3-2002 and IEEE 802.3ab. These SFP modules can support data signal transmission rate of 10/100/1000Mbps respectively with up to 100 meters reach through shielded or unshielded twisted-pair Ethernet category 5 and above cables.