Rocmount® ProM RM-Dual bracket securely mounts two Mac® Pro in a fixed rack or a transportable rack system occupying 4U rack space. The versatile cradle design of this mounting bracket allows Mac Pro users to slide the removable cradle in this dual mount bracket and use it in an alternate location having another ProM series docking bracket. The ProM RM-Dual may also be used with a single Mac Pro, and the remainder space of the bracket could be used as a shelf for supporting other items such as data storage. The rack shelf is 16-1/2" wide by 16" deep. And with a single Mac Pro computer installed, the available surface area is approximately 11"w x 16"d. The ProM rubber coated contact surface locks the Mac Pro securely into place with two precision fitted, powder coated galvanized steel straps. Rocmount ProM Series brackets are built and designed in USA and features with 18 gauge ruggedized design construction and feature a stylish finished high-gloss black baked-on powder coating for long life.