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by johnwalkr
1061 days ago
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In my experience and understanding, those are voltages usb-c must support. Section 4.5 explains how the voltage is zero until a correct resistance is detected, then it can be negotiated up from there. Usb-c to usb-a cables always contain the right resistors to work at up to 5V, 3A. In fact if you go on aliexpress and buy male connectors to make a usb-c cable they will almost always have the resistors needed to make a usb a-c cable. |
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