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I plug guide camera into the usb2 hub on my asi071. I run that to a 12v powered usb3 hub on my mount. That connects to my computer via a 3m USB3 cable and a 5m powered usb3 cable (from jaycar).
You don't need the USB3 hub. I use the usb3 hub as that also connects to my mount and computer controlled dew heater.
And the zwo (pro) cameras are fine with usb2, just slower
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