Specifications: Capacity: 32m, 64m, 128m, 256m, 512m, 1g, 2g, 4g, 8g Data retention: over 10 years More than 1, 000, 000 times data encryption Speed: read: 10mb(usb2.0) Write: 4mb(usb2.0) Multiple operation systems supported: no driver needed in windows me\ 2000\xp\vista, mac 9.X or later, linux kernel 2.4 or later. Only windows 98 and windows 98se need the enclosed driver. With bootable function, auto-run function is optional, built-in password protection Operating current: < 100ma Operating temperature: -20 ~ 70 Humidity: 5% ~ 90% Delivery time: 5 - 10 working days Metal box, paper box, plastic packing and so on