this post was submitted on 17 Aug 2025
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My innocent brain wants to know what will actually happen
Nothing at all.
The power supply only puts 5V on the appropriate pins, just like a computer would. Since there is no computer, the drive will do nothing. Even if the power supply has USB-power delivery it won’t actually supply a higher voltage until the device asks for it, and this device won’t.
I don't know for sure but I think if all devices are to spec, nothing happens.