The SRW12UDP SmartRack 12U Low-Profile Switch-Depth-Plus Wall-Mount Rack Enclosure Cabinet is designed to house EIA-standard 19-Inch rack equipment in network wiring closets, retail locations, classrooms, back offices and other areas with limited floor space where you need equipment to be secure, organized and out of the way. Constructed from heavy-duty steel with a durable black powder-coated finish, the cabinet has a maximum load capacity of 90 kgs (200 lbs.) To ensure your valuable equipment stays secure, the side panels and front door lock securely to help prevent damage, tampering or theft. The front, top, bottom and removable side panels are vented, which allows air to flow freely through the cabinet and keep equipment cool. The reversible front door can open left or right by rotating the cabinet 180° before mounting. Convenient top and bottom ports allow easy cable routing through the cabinet. The SRW12UDP comes fully assembled and ready to mount to the wall, or use Tripp Lite's optional SRcastor rolling castor kit to make it a mobile rack. Square and threaded mounting holes and numbered rack spaces make equipment installation easy. The vertical mounting rails adjust in 7/8-Inch increments to accommodate equipment up to 20.5 Inches deep, such as such as network switches and patch panels.