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No problem.
Always good to use a hub with a laptop anyway, plug it in and always use those extra ports...saves on wear and tear for the onboard ports.
A lot of people replace their laptops quickly...

Run a powered USB hub (has it's own power supply) through one port on your pc.
Don't know about Mac but can't see why it should be any different as long as USB ports are there.

Why powered? Each...