The SRWF4U SmartRack 4U Low-Profile Vertical-Mount Switch-Depth Wall-Mount Rack Enclosure Cabinet is designed to house EIA-standard 19" 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 150 lb (68 kg). Because the low-profile cabinet mounts vertically, it extends only 8" from the wall while housing equipment up to 20" deep, including network switches and patch panels. In addition to 4U of rack space in the primary mounting area, it also includes a slide-out 2U mounting bracket at the top of the enclosure for patch panels up to 2.5" deep. The top panel and front door lock securely to help prevent damage, tampering or theft. The cabinet is vented, which allows air to flow freely and keeps reversible front door can open left or right. Convenient top and bottom ports allow easy cable routing. The SRWF4U comes fully assembled and ready to mount to the wall. Equipment installation is easy with threaded mounting holes and hardware that support M6 or 12-24 mounting.