StarTech.com Spare Hard Drive Tray for the DRW115ATABK Mobile Rack - DRW115CADBK (Black) Designed with an easy to use handle release mechanism An extra caddy can be purchased without the need to buy a whole drive drawer unit Unique locking mechanism that protects drive from accidental removal during use Exclusive shock absorber system protects the hard drive from damage Secure and affordable solution to store and transfer data Designed with an easy to use handle release mechanism An extra caddy can be purchased without the need to buy a whole drive drawer unit Unique locking mechanism that protects drive from accidental removal during use Exclusive shock absorber system protects the hard drive from damage Secure and affordable solution to store and transfer data Supports hard drive ATA66/ATA100 &amp; ATA133 with data transfer rate up to 133 MB/s 2 Ball-Bearing fans maintain optimum cooling and increased air flow LED indicators continuously show the operating status of the drive drawer