The SRW12US33 12U Wall Mount Rack Enclosure Cabinet is designed to integrate wall-mounting, easy equipment access, & cable management in IT network applications with limited floor space. Extended depth to 33" offers heavy duty construction to handle added leverage. Ventilated front door & side panels allow generous airflow to keep equipment operating safely. Adjustable rack rails with square mounting holes accommodate up to 12U of standard 19" rackmount equipment. A sturdy hinge between the cabinet & the wall-mount bracket allows the cabinet to swing away from the wall for easy access to equipment & cabling.