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In a general way, USB interface has two different sides,users should confirm the right side each time before connecting it with computer successfully. But with the wide use of wireless mice, USB flash disks and wireless keyboards, there is an increasing rate of using USB. The inconvenience of traditional USB has been an issue that is urgent need to be done.
The core concept of this design is to equip USB with a point symmetry inside to create two sides with no differences. So that users can insert the USB with each side they want. It increases efficiency and gains better user experience at the same time.