USB storage devices have brought us a lot of convenience, such as: fast transfer data from one computer to another; convenient to carry around. But it also brings security risks, for example: easy to be lost, to be stolen or to be peeped. This case, it's necessary to add password protection to the data stored on these portable devices so as to prevent other people to take unauthorized operations such like viewing, copying, deleting files inside, in order to ensure the safety of data and your personal privacy!