Startech 4 Bay USB 3. 0 Hard Drive Duplicator Dock The SATDOCK4U3RE USB 3. 0 and eSATA 1-to-3 Hard Drive Duplicator docking station enables you to duplicate/clone a single SATA hard drive to up to three other SATA drives simultaneously, as a standalone device. The duplicator can also function as a regular 4-bay hard drive docking station, by connecting to a host computer system. Large capacity drives (tested with up to 4TB 3. 5 and 1TB 2. 5" drives per bay) can be used to greatly enhance your computer's storage/backup capabilities. Able to perform 1:3 sector duplication, including HPA, from a single SATA drive onto three others simultaneously (at a rate of up to 72 MBps), the duplicator/docking station can save you time and effort. As an external HDD dock, it can be connected to your host computer through USB 3. 0 or eSATA, providing data transfer speeds up to 5 Gbps or 3Gbps respectively, from the hard drives to your computer system. Features Quick and Secure Erase functions and suppo