A housing assembly, structured to enclose a plurality of electrical components and flexible cables, each the electrical component coupled at least one other electrical component or to an input device by the cables, includes a plurality of mounting plate members and a plurality of vertical walls. The plurality of mounting plate members includes at least a bottom mounting plate member and at least one movable mounting plate member. Each mounting plate structured to support one or more electrical components. The plurality of vertical walls include a front wall coupled to, and extending generally perpendicular to, the base plate member, a first side wall coupled to, and extending generally perpendicular to, the base plate member, a second side wall coupled to, and extending generally perpendicular to, the base plate member, a back wall coupled to, and extending generally perpendicular to, the base plate member. The movable mounting plate member is pivotally coupled to the at least one vertical wall and is structured to move between a first, closed position and a second open position. Thus, a plurality of electronic components may be coupled to each plate in the plurality of plates, and whereby the electronic components remain coupled to each other as the movable mounting plates move between the first, closed position and the second, open position.