Specification: 1.support usb interface,data encryption 2.capacity:256MB-8GB 3.size:58*27*6mm 4.small size,light weight and portable,plug and play 5.no driver request,shockproof and moisture resistant 6.High reading and writing transfer rate (1GB):11650/5030 (2GB):19893/9883 We also have Olympic usb flash disk ,diamond usb drive,cartoon usb disk compact flash card and so on ! If you are interested in our products,you can contact me!  Emily