Compliant with SATAI/SATAII/SATA III USB 3.0-compliant with up to 5Gbps transfer speeds without compromising signal quality. Also, backward compatible with USB 2.0 and 1.1 standards. Supports USB Full speed(12Mbps)/ High-speed(480Mbps)/ Super-speed(5Gbps) Compliant with USB Mass Storage Class Bulk-only transfer specification Dual-Head IDE connector (40Pin & 44Pin) plus one SATA connector support 2.5'/3.5'/5.25' IDE and SATA devices (a 2.5' to 3.5' IDE converter is required for 3.5' IDE drive) Operates with one IDE and one SATA HDD simultaneously External power supply provided Supports Plug-and-Play