Archgon Clone MH-3621-U3 is a dual bay SATA HDD docking station with solid aluminium surface. The extra clone feature allows the user to quickly transfer data from the (old) master hard drive to a (new) destination without a PC (power plug is still needed). The status is also displayed on the panel by the LED indicator. The MH-3621-U3 has the latest USB 3.0 chipset built-in and supports large 8TB hard drives. Before starting the clone function, make sure that the original data in the destination drive is no longer needed; otherwise the data in the destination drive will be overwritten.