1, USB1.1/2.0 complaint, hot plug&play 2, No external power is required, powered by USB bus directly 3, Compatible between different operating systems 4, Electronic storage device, no merchanical 5,Write/delete protection switch 6, PC compatible, MAC compatible with USB port 7,Optional capacity: 32M-2GB 8, USB1.1 Writing speed: 800KB/s Reading speed: 900KB/s USB2.0 Writing speed: 10MB/s Reading speed: 11MB/s