Asus ROG G750 G750JZ G750JM G750JS G55VW Series Laptop 2nd HDD Caddy Second Solid State Hard Disk SSD Enclosure Adapter DVD Optical Drive Bay Replacement Condition: Brand New In Box, Never used. It's 12.7mm SATA Second HDD Caddy, comes with a standard bezel, You will have to transfer the faceplate of your optical drive to our caddy for a proper fit. By replacing your CD DVD Superdrive optical drive, you can install up to a 3 TB hard drive in this enclosure to increase your available storage space. Supports Windows & Mac OS, compatible with Most brands of laptops with 12.7mm SATA interal optial drives SSD or HHD is not included, 1 Year warranty