Mdf 150 double wire phone bracket, also known as the 150 pair terminal bracket for rack mounting - Connection capacity: 150 pairs of wires (maximum 15 pairs of 10 pairs can be attached) - Standard 19 "inch rack , 3U - Manufacturing materials: stainless steel In addition, Staphone also sells other products: - LAN cables - Patch Panel, wire rod - Network sockets, Network Oulets, Wallplate - Patch cord network jumpers