ILY DM-FU0-10V09 Mini USB Pro is small enough to easily carry around while maintaining extremely fast copy speeds and compatibility with USB 1.0, 2.0, 3.0 and 3.1. To further enhance its portability. With asynchronous copy mode, Mini USB Pro allows the copy process to commence immediately after USB drive is plugged in and users to replace an already duplicated drive with a new blank drive. No longer will users have to wait to finish a whole set of USB drives before duplicating new ones.