To help reduce the amount of time required to properly install components into either of the rack cabinets, Dell has created the Dell Rack Mounting Kits. These include the unique-to-Dell RapidRails mounting brackets, which utilize captive thumbscrews for tool-free installation and are designed to make physical set-up of the hardware faster than ever before. This product has been tested and validated on Dell systems to ensure it will work with your computer and is compatible with Dell PowerVault 224F/660F/22xS Tape Drives. The product includes the following parts: Rack Mounting Kit and Installation Guide.