Install this dual port HDMI wall mounting wall plate (flush mounting) in a wall, panel or system cabinet wherever it is desired. This junction box fits into the hole of a regular wall socket (e.g. for TV, telephone or internet). The size of the outer cover plate is 86 x 86 mm, the size of the middle cover plate is 50 x 50 mm. This allows you to easily plug your HDMI cable in and out. The wall plate supports high-resolution signal transmission with up to 4K @ 60 Hz (downward compatible), which offers optimal enjoyment. It also supports all common features such as ARC (Audio Return Channel), HDCP or 3D.