Universal 12.7mm SATA to SATA 2nd Hard Drive Caddy Adapter. Add a second 2.5'' HDD or SSD to your laptop via the E-Modular (E-Module) Bay / optical drive bay with this drive caddy. 1.The 2nd Hard Disk Drive Caddy / Adapter to bring you new maximum data storage flexibility, with the compact portable design. Which works with 2.5" inch 12.7mm Serial SATA Hard drive HDD and SSD (Solid State Drive) as well. With the second HDD in your Laptop. 2. The build-in lock screws make it easy to mount your second hard drive in the caddy. 3. The caddy is build from aluminum which makes it light, sturdy and provides cooling for the hard drive; 4. Plug & Play; Fast & Reliable connection just as the primary HDD.Fully integrated into Laptop, no cables / PSU / software driver needed. 5. Dual boot, Support installation of 2nd Operating System on the 2nd HDD/SSD and boot selection. Specification: Material: Aluminum Color: Silver Item Dimensions: 127x12.7x126mm Package Dimensions: 150*19*139mm Item Weight: 2.7 ounces Shipping Weight: 3.5 ounces Package includes: 1 x Hard Drive Caddy with Bezel/faceplate 1 x Screwdriver 1 x rubber 1 x bezel All parts are tested and quality controlled prior to shipment. If you have any problem with the item, Pls contact us by email.