Category 6 Plenum 550MHz local area network cable. 4 unshielded twisted pairs, solid 23 awg. Supports all category 6 applications including Ethernet 100BASE -TX, 100BASE-VG and 155 ATM. Particularly suited for high bandwidth applications such as 622 ATM, Wideband, Ethernet 1000BASE-T and emerging applications with anticipated data rates to 3.2 Gbps. UL listing NEC,CMP/MPP. Nominal O.D. is 0.25 inches. Meets all requirements as set forth in the Telecommunications Industry Association's standard 568 & 570 recommendations.