Specifically designed for use with Star Tech.com's Black Aluminum Serial ATA Drive Drawer (DRW150SATBK), this extra Black Hard Drive Caddy features an easy to use handle release mechanism for quick removal & insertion of hard drives. An extra hard drive caddy is the ideal solution for multiple mobile users of same system, high-speed back-ups of critical files, moving large files from one computer to another, & for running multiple operating systems on the same PC. With the durable aluminum design, it is an effective way for the heat to dissipate away from the hard drives to keep cool.