The USB 3.0/SATA 2 Dual Hard Drive Docking Station (CDD3000) with standalone cloning supports offline duplication to copy all data and system files from one drive to another with the touch of a button - no PC connection required. Or connect to a PC to use the included software for flexibility in choosing what files to process. The compact dual bay docking station accepts both 2.5â? and 3.5â? SATA hard drives and enables read/write capabilities to both drives simultaneously via SuperSpeed USB 3.0 for exceptionally fast data transfer. Features One Touch Cloning: clone your hard drive with a touch of a button (standalone or connect to a PC) Use it as a dual hard drive docking station Accepts two SATA HDD (3.5" or 2.5") plug-in one compact unit data can be transferred between 2.5" and 3.5" SATA HDDs Two hard drives can be read and write at the same time The dual hard drive docking station connects to the computer via USB 3.0