Duplicate one SATA Hard Drive onto three Hard Drives simultaneously. The SATDOCK4U3RE USB (Universal Serial Bus) 3.0 & e SATA 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" & 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 & effort. As an external HDD dock, it can be connected to your host computer through USB (Universal Serial Bus) 3.0 or e SATA, providing data transfer speeds up to 5 Gbps or 3 Gbps respectively, from the hard drives to your computer system. Features Quick & Secure Erase functions & support for IDE hard drives using the included SATA to IDE hard drive adapter (SAT2IDEADP).