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Is USB always 5v?

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Is USB always 5v?

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The original standard for power on a USB port, going back to USB 1.0, was 5V ± 5%. ... More recently, the USB 3.1 Power Delivery Specification allows a USB port to supply 5V up to 20V at up to 5A over an appropriate connector (older USB ports can't support 5A).

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