USB2.0 interface Capacity from 128 MB to 8GB and so on for you choose. High speed data transfer performance. Rate for Read is from 8MB/s to 15MB/s, for Write is 2MB/s to 8MB/s in Single-channel mode. (The rate of performance depends on the different operation system available and various flash adopted). Hot plug and play. Support multiple operation systems: Windows, Macintosh, Linux. Driver free except Win98 and earlier operation system. 10 years data retention. More than 1, 000, 000 times of usage.