This handy cloning station is ideal for system builders/integrators, computer technicians and IT departments. As well as acting as an external hard drive for 2.5\" and 3.5\" SATA hard disks it is also a convenient cloning station. It easily makes bit by bit clones (including Operating System and Partitions) of source HDDs onto target HDDs making it perfect for upgrading to larger capacity HDDs! The docking functionality allows bare HDDs, up to 3TB in capacity, to be connected to a computer via a USB 3.0 SuperSpeed interface (5Gbps). Data recovery and backups are done without the hassle of installation. The dual bay design allows two hard drives to be connected simultaneously, so that data can be copied between multiple drives of different types as 2.5\" and 3.5\" SATA drives are supported natively. Please click here to read Tech Radar\'s 5 Star review of this product.