The 1:1 HDD Copy Dock USB3.0 is both a powerful hard disk drive duplicator and a versatile dual-bay HDD docking station in one lightweight, portable device. This essential tool for building,upgrading and backing up computer systems is completely standalone, requiring no computer to run. Pushing a single button is all that's required for a fast sector-by-sector copy that includes partition and boot sector information, resulting in perfect clones/backups. Additionally, connecting the 1:1 HDD Copy Dock USB3.0 to a computer via USB 3.0/USB 2.0 gives instant access to up to two hard disk drives at a time.