Originally Posted by Jim Fogle
Also USB power lines normally are protected with motherboard fuses that might be weak or popped.
They're usually protected with a current sensor and an electronic switch, so generally shouldn't fail, just disconnect temporarily.
Of course shouldn't != will not.

When plugging in a USB device, one of the parts of the discussion between the device and the host/hub is the amount of power that the device wants. If the host/hub cannot supply enough power, it can and probably will decline the connection.


Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
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