The more, please visit: br br As we all known that a USB flash drive is a convenient portable storage device that enables you to transfer all your data from one computer to another very easily. So you can plug them into any computer that has a USB port. In this way, all your important files such as photos, videos and data can be with you all the time. But on the other hand, We may always lose files when transferring them from USB flash drive to other devices for unknown reason.