The Idc CAT 5E junction box can be used to join lengths of cat5e cabling together.- Junction Box- For Cat5 Cable- Can be secured to a wall or similar flat surface with screws and is compatible with both 110 and the Krone style punch down tools.- The Cablenet Cat5e UTP IDC Junction box is perfect for joining two Cat5e UTP cables to each other without the use of couplers and connectors.