Category 5 also has 4 pairs of twisted-pair copper cable wire, which are terminated by RJ45 connectors. Category 5 cables have a bandwidth of up to 100 MHz and speeds of up to gigabit (1000 Mbps). Category 5 cables can be used in ATM, token ring, Ethernet 1000Base-T, 100Bast-T and 10Base-T networks.