RM3U1913VBK is a 3U rack-mounted instrument enclosure designed for both desktop and rack-mount applications. The enclosure features extruded aluminum construction with overall dimensions of 5.25" height, 16.60" width, and 13.00" depth, providing a compact form factor suitable for standard 19" rack installations. It includes mounting flanges that accept pull handles, strong knockdown design for easy assembly and shipping, and is finished in rugged textured black powder coat. The enclosure comes with self-adhesive rubber feet, rack mount brackets, and all necessary assembly hardware, making it ideal for housing electronic instruments, control systems, and signal processing equipment in professional audio, broadcast, and instrumentation applications.