1-4 of 4 Answers
The center conductor is positive. 5V, 4 Amps.
Sorry, there was a problem. Please try again later.5.0 V at 4.0 A, positive tip
Sorry, there was a problem. Please try again later.You are working with alternating current, there is no polarity. The switch, on the other hand, can only be plugged into a USB connection one way; it can't be reversed due to it's physical design.
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