This is a non-terminated shielded twisted pair plenum solid copper patch cable. The Cat6 cable is a standardized twisted pair cable for Ethernet or other physical network layers. Cat6 standards specify performance of up to 250MHz. This plenum cable is the only cable allowed in spaces defined as air plenums, such as raised flooring systems and air handling ducts. Plenum cables must self-extinguish and prevent re-ignition. A shielded twisted pair patch cable offers both a higher bandwidth and more durable cable strength than an unshielded twisted pair cable.