However, the spin-up current was in excess of 2 (!) Amps for a good portion of a second, which would cause port overcurrent and failure to connect. I have seen older drives that would normally consume 700-800mA during intensive RW operation, so USB3.0 ports should be fine. Mechanical drives have a spin-up current which can significantly exceed the USB port power capability. The hard drive of 3TB size is definitely not a SSD. You can do some experiments with your hub by momentarily shorting VBUS to GND (red wire with black wire in USB cable with, say, 5-Ohm resistor, to determine the port capability. Some hubs have built-in power switches with certain pre-set limits (which are subject to manufacturing variations), some have no control or protection other that "resettable polyfuses" that may have marginal threshold. What is the power capability of ports on your hub.
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