The Freecom Hard Drive Dock Duplicator is a 2 bay hard drive dock that enables you to copy data from one hard drive to another without the use of a computer. Simply click your hard drives into the duplicator, press the button & your hard drive will be copied. Ideal for professionals such as System administrators to copy drive images quicker, easier & safer than before. Home users will also benefit from the copy function when upgrading to a bigger hard drive or simply using the Dock functionality. Of course the duplicator can also be used as a single hard drive dock. The Duplicator easily connects to all kinds of computers & laptops via USB2.0 or a super fast e SATA connection. Cables are included in the box. Click your 2, 5”or 3, 5”SATA drive in the dock & it instantly becomes available to you, exactly like an external drive. Ideal for temporary use of your (old ) internal hard drive.