Ball pen + USB mobile storage, ideal choice for gift. Capacity range: 64MB 128MB 256MB 512MB 1GB 2GB. USB interface: Plug & play, hot-swapping. LED indicates the state of the drive. USB1.1: Read Speed: 960KB/S, Write Speed: 860KB/S. USB2.0: Read Speed: 12-22MB/S, Write Speed: 8-16MB/S. USB bus-powered, no external power required. System requirement: Windows 98/ME/2000/XP. Shockproof, moisture-proof and magnetic-proof. Data retention: Over 10 years.