1: Uses the USB1.1/2.0 connection, supports hotly inserts pulls out,namely inserts namely uses; 2: Does not need the external power supply; 3: The support capacity is: 64M 128M 256M 512M 1GB 2GB 4: Uses many kinds of operations platform WIN98/SE/ME/2000/XP, MAC OS8.6&HIGHER, UNIX, LINUX2.4 or the renewal edition (WIN98 must install driver) 5: Electron storage medium. Inorganic weapon part, anti-vibration, anti- electronmagetic interference; 6: Preservation data security;