dimension: 60*20*10mm net weight:11g/pc Specification: 1.support dul BIOS modle , subzip and usb disk 2.usb interface ,no driver request,plug and play 3.small,slim shockproof and moisture resistant 4.only windows 98 need the drive 5.data encryption,divide into public data district and encryption district ,arbitrary to segment 6.LCD screen powered by solar energy, no need to replace batteries If you are interested in our products,you can contact me!