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This USB with an electronic screen to show the QR code .
The QR code change
according to capacity of USB ,
you can know the capacity of the USB directly .
you want to check the content in USB scan the QR code
with the cell phone to
get the content .Besides,
the content can deliver to cloud ,The USB break the
traditiional,making the life more conventient .
It is easier to transmit data .If you
want to check the content,just scaning
College of Science&Technology
school of software technology zhejiang university
anli xue, menrong hou,