1. Plastic and metal case,engrave or imprint logo is optional.
2. USB Host Interface : USB2.0
3. Data Retention : Over ten years
4. Available capacity of 64M,128M,256M,512M,1G,2G,4G,8G,16G
5. Color:blue,red,black,green,    size:6.7×2.1×0.9(cm)