The Audix CBLM307 is an M3 Interface cable, Cat 7, 7 meters (23') RJ45, 4 twisted shielded pairs, with plenum cover. Audix manufactures a high quality CAT 7 cable optimized for balanced audio and cross talk elimination. The cable is LS0H (low smoke zero halogen) and consists of four twisted pairs that are individually shielded, RJ45 male connectors and a brass housing to further seal the cable at the plenum rated junction box.