Ships fully assembled for easy deployment—just roll enclosure into place on its pre-installed, heavy-duty casters. Perforated doors provide massive front-to-rear ventilation capacity, meeting or exceeding server manual requirements. Locking, removable, reversible doors and side panels provide the perfect combination of security with safe and easy access to components. Toolless accessory mounting rails (two per enclosure) include slots for quick installation of compatible PDUs, cable managers, and other accessories. Convenient grounding system features multiple connections to ground and quick-release ground wires for front and rear doors. An open bottom and generously-sized access holes on the top panel make it easy to bring in all necessary cables. Built-in baying tabs allow safe, secure connection to other enclosures. Textured, powder-coat finish provides tough protection against environmental concerns, such as deployment in warehouses. Component Type: Enclosure; Component Style: Premium (includes doors and side panels); Unit # (Capacity): 42U.