Features: Heat Dissipation: Hollow design and open installation provide good heat dissipation for hard drive, protect hard drive and prolong it's useful life. Stable: Aluminum chassis with solid and stable structure keeps the shape even in high temperature, uneasy to be scratched. Expanding Space: This hard drive caddy can install your 2.5 or 3.5 inch HDD, SSD to the optical drive bay, expanding storage space. DIY: Install 2.5 or 3.5 inch IDE, SATA, HDD or SSD with 3 groups of screws, do it yourself, experience more fun. Compatible: Compatible with any 2.5 or 3.5 inch IDE, SATA or for SAS hard drive and solid state disk, quick and easy installation.