1. Plastic case,multicolor,imprint logo is optional. 2. USB Host Interface : USB1.1/2.0 3. High reading and writing speed: USB1.1 950KB/s and 750KB/s,USB2.0 21MB/s and 17MB/s 4. Operating System: Windows98/SE/ME/2000/XP, Mac 9.X/OSX, Linux 2.4X 5. Data Retention : Over ten years 6. Available capacity of 16M,32M,64M,128M,256M,512M,1G,2GB 7.Color:white,blue,balck,red... 8. size :5.5?.6?.9(cm)