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![Why does micro USB 2.0 have 5 pins, when the A-type only has 4? - Electrical Engineering Stack Exchange Why does micro USB 2.0 have 5 pins, when the A-type only has 4? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/KSGN3.png)
Why does micro USB 2.0 have 5 pins, when the A-type only has 4? - Electrical Engineering Stack Exchange
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