4 RU usable height External dimensions (W x H x D): 52 x 20,5 x 40 cm 28 cm Installation depth 3,9 cm internal door's depth 7 mm birch plywood Phenolic Resin dark brown Aluminum Case Angle 22 x 22 mm 8 x Ball corner medium with integrated corner brace 47 mm 4 x Butterfly catches 2 x Heavy Duty Rivet Protected Recessed Handle Green Heavy duty Rack Strip black at the front 4 x Rubber Foot 38 x 15 mm