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Which power USB hub uses if it has external power supply as well
Fresh7 days ago
Mar 15, 20262802 viewsConfidence Score0%
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Problem
I have 7 port USB hub with external supply. I tried turning it off by removing external power but then it takes power from motherboard and is still working. I have many external hardrives connected to it. i was worrying if i turn off the power it may damage the motherboard by withdrawing so much po…
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Fix for: Which power USB hub uses if it has external power supply as well
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USB ports can supply up to 500mA per port for powered ports, and 100mA per port for unpowered. Also, the hubs usually say they draw 100mA of power, that is why you usually see four port unpowered hubs (100mA for the hub, and 100mA x 4 ports = 500mA …
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