The 1:1 HDD Copy Dock USB 3.0 Hard Disk Drive Duplicator from Aleratec is a hard drive duplicator that clones hard drives sector by sector. With disk cloning you can copy the entire contents of a drive including hidden and in-use files. Setup and configuration is simple as this standalone duplicator can be operated with the press of a button. Once the cloning process has begun, you can monitor how far along the cloning process is via the integrated progress bar. This duplicator is compatible with both USB 3.0 and 2.0 ports and will accept both 2.5" and 3.5" drives.