100BASE-T4 Represents a 100 Mbps CSMA/CD network that operates over four pairs of category 3, 4 or 5 unshielded twisted-pair or shielded twisted-pair cable. Altough 100BASE-T4 is siumular to 10BASE-T in that it is a hub-based network, to ensure proper collision detection, the spam of the network was reduced to 250 meters, with maximum of 100 meters permitted between a workstation and a hub port. The connectors used for 100BASE-T4 are RJ-45