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nowadays,USB is a very important tool in our daily life.However, USB in the absence of a security exit will damage the U disk will also bring irreparable harm to the computer. We designed a direct press on the U disk after the round button, until the U disk on the light after the traffic lights can be directly pulled out of the U disk, without the complex complex operation on the computer.
The circular button of the U disk is also provided with an icon for safe withdrawal, which is convenient for people to understand the usage mode of the circular button when people use it.
Nan Chang University
Nan Chang, China