The 2nd Hard Disk Drive Caddy / Adapter to bring you new maximum data storage flexibility. With the second HDD in your Laptop, you can speed to backup important applications and critical data. Simply remove your CD-ROM drive and put the Caddy (with the added hard drive) in its place. The SATA to SATA Caddy is for laptop / notebook which uses 9.5 mm thick / high Optical Drive with SATA(Serial ATA) connector / interface. And works with 2.5" SATA(Serial ATA) HDD( Hard Disk Drive ),and SSD( Solid State Drive ) as well.

Please make sure this caddy is compatible with your laptop before purchase.