This is a 1000ft non-terminated black shielded twisted pair plenum-rated copper patch cable. Cat5e specification is used in structured cabling for computer networks, such as Ethernet. The cable standard provides performance of up to 100 MHz and is suitable for 100Base-TX and 1000Base-T. This plenum-rated cable is the only cable allowed in spaces defined as air plenum-rateds, such as raised flooring systems and air handling ducts. plenum-rated cables must self-extinguish and prevent re-ignition. A shielded twisted pair patch cable offer both a higher bandwith and a more durable cablestrength than an unsheilded twisted pair cable. Our patch cables are 100% compliant for all of your networking needs. Our products are guaranteed by federal law to not affect or void OEM warranties.