Slim mounting frame for 2.5 drive to 5.25 bay This practical slim installation frame can be installed into a free slim 5.25 SATA slot in your slim PC or laptop. You can install it instead of the DVD-ROM drive. This allows you to use an extra 2.5 SATA HDD on your PC. For installation in 5.25 SATA slim bay Easily add an extra hard drive to your PC No drivers required