The use of UTP copper wiring for MB-per-second, in-building data networks was first proposed in the mid-1980s and became the standards were defined in 1994. Category 5 cables usually have four twisted pairs of copper wire and are terminated with eight-wire RJ45 miniature connectors. This cable delivers 100-Mbps Ethernet bitstreams up to a distance of l00m (325 ft) between the electronic equipment (ex: switch) and the desktop device