CAT4

CAT4 or Category 4 is network cabling that consists of four UTP wires, transmits data at 16Mbps, and was used with token ring networks, 10BASE-T, and 100BASE-T4. Today, CAT4 is no longer used and rarely found.

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