Hi-Speed USB 2.0 Standard USB. Capacity:128MB, can follow customised requirement to make from 128MB to 128GB. USB Interface: USB2.0 (also compatible with USB1.1 and 1.0). Data Retention: at least 10 years. Password protection and optional auto-run function. Plug-and-Play function, without need of any extra power supply. Compatible between different operating systems, windows2000/XP/VISTA or above.