1: USB2.0 interface,comply with USB2.0 criteria; 2: Compatible with USB1.1 criteria; 3: Support Plug and play; very convenient; 4: USB 1.1 Writer: 860KB/s Read: 960KB/s 5: USB 2.0 Writer: 11MB/s Read: 12MB/s 6: Support Win2000/XP/ME,Mac OS 9.0,Linux Kernel 2.4.0 and other new version of management system; 7: No need to install setup program (except WIN98),more convenient for usage 8: Storage capacity: 64MB, 128MB, 256MB, 512MB, 1GB,2GB,4GB,8GB