USB flash memory U-disk, no need drive Build-in 32/64/128MB flash memory High speed data trasist speed, can reach 600kb/s for wright speed and 950kb/s for read speed User identify technology Disk protection function to avoid boot area damage Easy operation, plug and play Anti-shock, anti-moist function Receive/send email function PC lock: use U-disk to lock PC, you can only start computer on U-disk state Weight: 15g