Comment on Will there be power issues if I plug an unpowered USB hub into a powered on or vice versa

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jjagaimo@lemmy.ca ⁨11⁩ ⁨months⁩ ago

That is not how devices like this work; plugging a 5V 3A device into a 5V 1A port means you can only pull 1A. Going beyond that will either trip a fuse on the board or cause the port to shut off, or potentially keep working with diminished voltage.

If it is USB PD or QC then the devices may negotiate a higher voltage, but for standard hubs like these it’s most likely to just use a USB A port and 5V.

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