Low profile design fits behind the industry’s thinnest mounts and TVs Wall box storage capacity increases by 75% when expandable portion is extended into the wall Includes a 20 amp/125 volt duplex receptacle Mounting wings fasten to the drywall as you tighten, eliminating the need for a low voltage mounting bracket 3 interchangeable plate options: Flexible Opening, 6-Port Keystone, and Blank Plate