an electrical device mounting assembly for flush wall mounting of an electronic device that requires both power and low voltage connections . the assembly enables recessed mounting of all electrical components , wiring , cabling , and plug ends of electrical cords behind the wall surface . the mounting assembly includes a mounting frame , a trim plate , and rotatable clamp arms to enable rapid mounting to a wall . the mounting assembly enables mounting of either a high voltage or low voltage mounting plates at an angle with respect to the wall surface , thereby minimizing the depth of the mounting frame while providing a substantial enclosure for recessing plug ends of electrical cords and low voltage cables . the mounting assembly enables consolidation of power and signal hookups for a tv , home entertainment system , or similar electronic device in a single assembly that is recessed within the wall .