The ROADINGER Effect Rack CO DD is a 4U flightcase for 483 mm (19-inch) control and effect units. It features two removable covers, built-in rack rails, a 22 mm aluminium profile frame, four spring locks with shut-off function, a carrying handle, rubber feet and 7 mm black laminated plywood construction. The case has a maximum load of 25 kg and a mounting depth of 240 mm. Its external dimensions are 52.5 × 40 × 23.5 cm, and it weighs 5.5 kg.