The RDRW1900722BK1 is a rack-mountable drawer assembly providing secure storage within a standard 19-inch equipment rack. It occupies 3U of rack space, with an overall width of 19 inches and a depth of 22.25 inches. The unit features a key lock for security, a plastic handle for operation, and a cable pass-through in the rear for convenient wiring. It supports an adjustable mounting depth from 22.10 to 27.88 inches and includes rear support brackets for installation. This drawer is ideal for organizing and securing tools, manuals, or non-rack-mountable devices in a data cabinet or server rack.