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A comment on Logic board with 20 USB3 ports. Parent comment

Re:Logic board with 20 USB3 ports by ohazi on Monday September 21, 2020 @02:18AM (#24540385)
> keyboard extra power

Come again?

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Re:Logic board with 20 USB3 ports by arcticbull on Monday September 21, 2020 @02:29AM (#24540448)
Sometimes USB keyboards with PS/2 backward compatibility have 2 plugs, one for they keyboard you can use with a USB to PS/2 passive adapter, and one that supports a built-in hub or some other secondary high-power feature such as RGB.

I suspect this has more to do with PS/2 compatibility than it does requiring a second port's worth of power.

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Re:Logic board with 20 USB3 ports by Urgo on Monday September 21, 2020 @02:24AM (#24540422)
My understanding was the second plug powered the LED lights in the keyboard but now I'm not 100% sure if its for that or just for the passthrough USB port on the keyboard itself.. maybe both?
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Re:Logic board with 20 USB3 ports by lb1lf on Monday September 21, 2020 @02:22AM (#24540414)
Not OP, but presumably the keyboard is fitted with a USB hub requiring extra power.
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