Quote:
Originally Posted by MR2Aaron
The ports in my 2021 seem to lack the fast charging features that are provided by most 3.0 implementations, so I would guess they're 2.0.
I don't have a good way of measuring the transfer speed, though.
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USB versions are not directly related to 'fast charging' although there are some aspects that tie in to certain pieces of charging. While Fast Charging varieties are often found in higher versions of USB, it also requires additional circuitry to allow the device to negotiate higher voltages and faster charge speeds as long as the device and the charging circuitry are compatible. The original specs for USB did have limits of 500mA which would cause today's phones to charge extremely slowly.
The ports in the cars are not any form of USB 3 as that would be indicated by a blue plastic 'insert' inside of the female connector where the cable slides in. That basically means that they are USB 2 since USB 1 really isn't produced any more (USB 2 was released 20 years ago at this point).