Do you know how the USB bus is arranged on the Orange Pi? On the Raspi3 the usb bus and ethernet were linked so caused problems. Also you would need to find out how the power is spilt up on the sipolar hub. I know you said you have tried different ports but if you dont know how its split then you could be pushing a regulator too far and its dropping the stick.
No I don't know, but will try to find out. Also I don't know where to look for sipolars usb bus, I was expecting to receive details in the package with shipment, but that didn't happen. Wasn't it made by someone here I could contact directly?
What do you guys to run those mining farms? Raspi4?