what is the purpose of a usb memory stick
USB flash drive. JumpDrive redirects here. For the fictional propulsion system, see Jump drive. A USB flash drive, also variously known as a USB drive, USB stick, thumb drive, pen drive, flash-disk, or USB memory, is a data storage device that includes flash memory with an integrated USB interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc.