C2G/Cables to Go 39501 Cisco GLC-T Compatible 1000Base-T Copper SFP (mini-GBIC) Transceiver Module SFP (mini-GBIC) transceiver module designed for use with Cisco network equipment RJ45 port designed for use with Category copper cabling Gigabit Ethernet communication Supports up to 100 meters of cabling Lifetime Warranty