This USB flash drive has a metal case with a circular ring at the upper end, so that it may be attached to a key ring and is ready for use at any time. The one-piece storage medium is lightweight and slim and can thus be taken virtually anywhere. The metal case is fashioned from a zinc alloy, lending the flash drive both durability and an elegant appearance. Its sand-blasted surface prevents scratches and fingerprint marks. With the integrated chip-on-board technology, it is water-, dust- and vibration-proof.