Universal Mounting Hole Pattern Powder Coated Steel 55 lb Load Capacity 9.8″ Depth This 1 RU 19″ Rack Tray from Adam Hall fits into a 19″ wide rack, providing a storage shelf. It features a universal mounting hole pattern for mounting a variety of accessories, and it is made from powder coated steel for durability and corrosion resistance. With a 55 lb load capacity, this tray can support items from small to large.