![]() ![]() Limited to the same ~500mA maximum (an unsigned 8 bit integer Therefore unless you can negotiate as a USB 3.0 device you will be At USBģ.0 the unit is 8mA, allowing a higher maximum power. When operating at USB 2 (or below) the unit of power is 2mA. The device is connected to a USB 3 port, without being a deviceĬapable of the higher speeds? I'd like to use this higher level ifĪ: The answer to a related question suggests this will not be Is it possible to negotiate a USB 3 power level, such as 900 mA, if Q: USB 3.0 power levels on USB 2.0 device To the question of whether a USB 3.0 port would provide 0.9A (USB 3.0 standard) or 0.5A (USB 2.0 standard) to a connected USB 2.0 device, according to this link, the answer is "it would provide only 0.5A (the USB 2.0 standard)": ![]()
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