. The ultra-portable HV620S packs up to 1TB of external storage in a drive thats only 11.5mm thick. The design also shines with a mirror-like gloss simple but elegant & fitting for dependable go-anywhere storage that runs via fast USB (Universal Serial Bus) 3.1. For all your content & with nearly universal device compatibility the HV620S embodies smart design that increases capacity & performance while reducing physical space requirements..