This is a standardized frame or enclosure for mounting multiple equipment modules. Each module has a front panel that is 19 inches (482.6 mm) wide, including edges or ears that protrude on each side which allow the module to be fastened to the rack frame with screws. Front Glass Door, Openable side doors, Fan Tray, Cage Nuts Rear Lockable Doors and Casters and Shoes. Available form 12U to 47U with depth of 600, 800 and 1000 mm. Optional width of 600 or 800mm