This USB 3.0 to SATA/IDE converter is designed for 2.5/3.5 hard disk drives, supporting up to 4TB capacity and speeds of up to 5Gbps. It is compatible with Windows, Mac, and Linux systems, and features an on/off switch for HDD protection. The package includes a USB 3.0 male to male cable, a 12V power cable, and a 4-pin power cable.