Cantilever design 19" (17-1/2" useable) width rack shelf. It occupies 2 rack units of space and is 14-1/2" deep and available with venting. Weight capacity is 50 pounds. Shelf weight-9 lbs. Fixed shelves serve as an excellent means for mounting non-rackmountable components such as tower or desktop CPU's, audio components, video recorders, etc. This 19" rack shelf conforms to all standard 19" EIA rack enclosures, cases, cabinets and frames from Star Case as well as other OEM vendors. Mounting screws are included.