1. Compatible 64M/128M/256/512M/1G 2. No driver installtion required (Except on Windows 98) 3. Support data restore, reliability of data 4. USB1.1/2.0 standard interface, driverless, hot plug and play 5. At least 10 years data retention, read & write time than 1000 6. can free to Choose USB1.1/USB2.0