Capacity:4GB-128GB. 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. Operating Temperature: -10 to 55 degree Celsius. Storage temperature: -20 to 55 degree Celsius. Operating Humidity: 20% -90%. Storage Humidity: 20% -93%. CE, ROHS, FCC approval.