Product Description: This 19-inch 2U Cat3 voice patch panel is designed for telephone / PBX voice cabling system. Pre-loaded with 50pcs 6P4C RJ11 keystone jacks, rear with 110 IDC punch down terminals, used for centralized termination of telephone cables in server room / communication cabinet. Only for voice signal, not for high-speed data network. Features: Standard 19” rack mount, 2U height 25 ports, preloaded with 25 pcs 6P4C RJ11 keystone jacks Rear termination: 110 IDC