***** **********Best Quality Guranteed. *****100% CompatibleIntel gigabit ethernet 1000BASE-T standards(also compatible for 10/100/1000Mbps), coding as Intel E1GT-A and also compatible for E1GT*****1G RJ451000BASE-T Transceiver RJ45, 1.25G b/s Copper, 100 meters, 1.25G bps, RJ-45 connector, hot and play*****ApplicationLan 1000Base-T Gigabit Ethernet over Cat 5 cable and switch, router, server interface with RJ45 connector. *****3 WARRANTY 30-Days Free-returned, 60-Days Free-replacement, 3-Years Free-maintenance*****STANDARDS MSA Compliant, IEEE STD 802.3 and 802.3 ab