USB-A 2.0 - 3.0 cho ra tối đa là 5V - 2.4A (12W)

USB-C 3.2 thì khác

With a default 5V voltage, the USB-C port is capable of negotiating with the plugged-in device to raise the port voltage to 12V, 20V, or another mutually agreed on voltage, at a mutually agreed current level.

Cho nên USB-C hub (tối đa 20V - 5A = 100W) thường có đủ power cho devices cắm vào, miễn là computer hay laptop được charged đầy đủ.

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