You buy a ‘pro’, which has the correct hardware to do super speed. The pro has a new chip, the ‘normal’ 15 doesn’t.
The A17 is the first Apple A series SoC with USB3 controller built in while previous chips only had USB2 on the SoC.
Is a fast controller only needed for specific types of data?
This reeks of segmentation
Do those 2016 Pixels still have unpatched USB exploits?