StarTech SATDOCK2REU3 2.5 & 3.5 Black SATA II Hard Drive Docking Station and Standalone HDD / SSD Duplicator Dimensions: 2.4 x 5 x 4.1 (H x L x W) Specifications: Drive Connectors: 2 - SATA Data & Power Combo (7+15 pin) Host Connectors: 1 - USB 3.0 B (9 pin; SuperSpeed) Type and Rate: SATA II (3 Gbps) Type and Rate: USB 3.0 - 5 Gbit/s Type: Drive Dock Maximum Capacity (per Bay): Currently tested with up to 4TB 7200 RPM 3.5 hard drives and 1TB 7200 RPM 2.5 hard drive Operating Systems Supported: Windows XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ 7(32/64-bit)/ 8(32/64-bit)/ Server 2008 R2, and Mac OSX, and Linux 2.6.31 and up Weight: 1.35 lbs. Package Contents: 1 x HDD Dock 1 x USB 3.0 Cable 1 x Universal Power Adapter 3 x Power Cords (NA/UK/EU) 1 x User Manual