This handy Cloning Adapter is the portable alternative to a SATA Docking station. Ideal for system builders/integrators, computer technicians and IT departments it acts as an external hard drive for 2.5\" and 3.5\" SATA hard disks as well as a convenient cloning station. It makes bit by bit clones (including Operating System and Partitions) of source HDDs onto target HDDs making it perfect for when upgrading to larger capacity HDDs. It can also act as a standalone cloning station when not connected to a computer. When connected to a computer the adapter allows bare HDDs up to 3TB in capacity, to be connected to a computer via eSATA (3Gbps) or USB 2.0 (480Mbps). Data recovery and backups are done without the hassle of installation. The dual SATA connector 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.