The Clickfree Transformer is an innovative computer backup solution that enables a user to convert any external USB hard drive into a Clickfree backup drive. Finally make use of that "plain" external hard drive that is collecting dust. Use any external USB hard drive of any size from any manufacturer. No need for any other backup software. Just plug the Clickfree Transformer into the PC and then plug any external hard drive into the other end of the Clickfree Transformer and it converts the external hard drive into a Clickfree device. Use one Clickfree Transformer with multiple hard drives, and backup up multiple computers.