Thanks for asking!
Yes it should connect at 3.0 speeds. Are you sure that the devices are connecting at 2.0 speeds? macOS should show 1.1/2.0 devices under a 2.0 tree and USB 3.0 devices under a 3.0 tree. It varies slightly depending what macOS version you have of course.
Here is my system with a hub attached. The hub itself shows up four times (twice for 2.0, twice for 3.0). Currently I have no 3.0 devices attached so everything shows up as 2.0:
Please don’t hesitate to let us know of other questions.
Thanks again for contacting Plugable support and best wishes!
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