Excel Cat6 UTP Unscreened Keystone Jack IDC Punch down Black Box 24, available as part of our range of excel Cat6 keystone jacks for RJ45 network connections. Suitable for mounting in a range of housings from patch panels, faceplates and shutters, to floor boxes and work area distribution enclosures. The socket itself is housed in a high quality ABS plastic housing which opens at the rear to reveal the IDC termination points.