Fully compatible with USB 2.0 and backwards compatible with USB 1.1; High transfer rate: Up to 480Mbits; Stand-alone storage device. Desktop/Laptop not required; Supports CF Type I, CF Type II including MicroDrive, SM, MMC, SD, MS, MS Pro; Black and White LCD displays status with blue backlight; Becomes external HDD and USB card reader/writer when it is connected to your computer; Auto shutdown (idle 10 mins) in stand-alone mode; Li-Ion rechargeable battery lasts approximately 3 hours on a full charge.