• Type: Universal 9.5mm Second HDD Caddy, for 2.5" SATA(Serial ATA) HDD( Hard Disk Drive ), and SSD( Solid State Drive ) as well.• Thickness: 9.5mm, plastic material, hollow out design, light weight, easy to carry, coming with universal front panel, screws and screw driver.• Interface Port: SATA 3.0, fast and reliable connection in your laptop, just as the primary HDD.• Function: With a second hard drive, you can quickly store and back up critical data. Add this caddy to your laptop to give you another hard drive. Simply remove your CD/DVD-ROM drive and put the Caddy• Applications: For laptop / notebook which uses 9.5mm thick / high Optical Drive with SATA(Serial ATA) connector / interface.