The In-Wall Cable and Power GearBox (GB-INWAVPB) works well with all Premier flat-panel mounts and is easily installed into a drywall surface. - Works well with all Premier flat-panel mounts - Includes UL approved junction box - Includes knockouts for power and signal - Mounts vertically or horizontally - Can install in drywall - No need for dedicated pre-construction stud placement - Easy installation and placement