SuperSpeed (5 Gbps) / High-speed (480 Mbps) / Full-speed (12 Mbps). Compliant to Universal Serial Bus 3.0 Specification, Revision 1.0. Compliant to Universal Serial Bus Specification, Revision 2.0. Mass Storage Class Bulk-Only Transport. Compliant to Mass Storage Class Bulk-Only Transport, Revision 1.0. SATA Gen2i (3 Gbps) & Gen1i (1.5 Gbps). Compliant to SerialATA Specification Revision 2.6. Support one native SATA 3.5 inch HDD. Screwless design for user’s convenience. Active LED for operation status. USB 3.0 Port, on/off Switch, and power socket at rear side. System Requirement: 1 USB 3.0 Controller (Port) / Window 7 (32/64 bit) / Window Vista (32/64 bit) / Window Server 2003 / 2008 (32/64 bit) / Window XP (32/64 bit)