U disk can not be inserted memory card. The USB FLASH drive (USB flash drive) is mainly composed of a shell movement (the movement includes a PCB USB master chip crystal oscillator patch resistor, capacitor USB interface patch LED (not all USB flash drives have) FLASH (flash) chip).
Usb flash drives usually use ABS plastic or metal housing and contain a small printed circuit board inside. Only the USB connector protrudes out of the protective case and is usually covered by a small cover.
Most USB sticks use a standard Type-A USB connector, which allows them to plug directly into A USB port on a personal computer.
To access the data on the flash drive, the drive must be connected to a computer.