CAT3

CAT3 or Category 3 is a description of network cabling that consists of four UTP wires with a data rate of 10Mbps and was used in token ring networks, 10BASE-T, and is still used in some phone systems.

Also see: Cable, CAT1, CAT2, CAT3, CAT4, CAT5, CAT5e, CAT6, CAT7, Network definitions