We have a user reporting the same issue on a Havit HV-F2056 cooling pad as well. And we purchased this cooling pad, however we cannot reproduce the issue with the cooling pad alone.
Do you plug additional devices into your cooling pad?
Looking inside the Havit cooling pad, it passively passes the usb-2 signals from one connector to another without any hub IC. Also there are no capacitors to smooth current spikes from the fans. I do wonder if there is a peak current from the pad that exceeds the port current rating.
I did measure the average current, and it is pretty low, only about 600mA, and each port will deliver at least 1.5A.
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