USB Version 1.1/2.0 interface Capacity from 64MB to 8GB High Performance Data transfer rate for Read is from 12MB/s to 25MB/s , for Write is 4MB/s to 14MB/s in Dual-channel mode Data transfer 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*** Driver free (except Windows 98 and below) 10 years data retention More than 1,000,000 times data encryption Built-in Password Protection is optional (default setting: NO password function) Auto-run Function is optional (default setting: NO auto-run function) Bootable Function is optional (default setting: NO bootable function) ReadyBoost Function under Windows Vista system is optional (default setting: NO readyboost function)