Hidden Flash Disk
Nowadays people regrad the digital products demand such as the usage of USB flash disk as more and more importance. For this, we design a new one that can not only display the capacity but also to protect the privacy of personal u disk. This u disk is energy conservational and environmental friendly at the same time embodies the delicate life. U-disk was separated into itself and SD card weo parts by the way to inserted the SD card , and is will certainly enlarge its memory.