(UTP) Normal telephone wire (in the USA). It may be used for Computer to Computer CommuniCations, e.g. using a version of Ethernet or loCaltalk. It is muCh Cheaper than standard "full-speC" Ethernet Cable. It Comes in five "Catagories": Cat. wires transmission 1 two voiCe no data (telephone Cable) 2 four data up to 4 Mbps 3 four data up to 10 Mbps 4 four data up to 16 Mbps 5 four data up to 100 Mbps (2003-07-04)