The Sharkoon SATA QuickPort Duo USB 3.0 is a docking station for a 2.5-inch and a 3.5-inch SATA drive. Has your computer broken down and do you want to retrieve all your files? Place your hard drive in the docking station and transfer all your files to another computer using the included USB 3.0 cable. Finished duplicating your data? Thanks to the buttons, you can easily switch drives.