This USB 3.0 to SATA adapter cable allows you to connect any standard 2.5 inches and 3.5 inches SATA hard driver to your computer via USB 3.0 port at speed up to 5Gbps. It supports OS: Windows 98/ 2000/ XP/ Vista/ Windows 7/ Mac OS 9.X/ 10.X/ Linux, and is ideal for backing up files or upgrading your notebook hard driver. The adapter is plug and play, with hot swapping, and is backward compatible with USB 2.0/1.1. For 3.5inch HDD, a 12V 2A AC/DC power adapter is required.