Black Box CAT5e Hard Wire Coupler connecting block

The easy way to extend cable. Feature 110-style punch-down blocks. Use with solid wire cables. Here's the answer to every data cabler's worst nightmare- cables that aren't quite long enough. Instead of ripping out an entire cable run you can simply punch down a new length for a high-quality sturdy connection. Choose from two couplers one for unshielded cable and one for shielded cable.