1) USB2.0, 2) Storage capacities: 64MB, 128MB, 256MB, 512MB, 1GB ,2GB,4GB,8GB 3) Speed: 960Kbps (read), 860Kbps (write) USB1.1; 12Mbps(read) ,11Mbps (write) ,USB 2.0 4) Super-shockproof and moisture proof 5) Data retention: Over 10 years 6) Compatibility: Windows 98/SE (requires driver), Windows ME, Windows 2000/XP, MAC OS 9.X, MAC OS X, LINUX 2.4.X (featuring for USB mass storage support protocol) 7) Using times:Write & erase over 1 million time 8) Power supply: does not require an external power supply