Deloptes  wrote:
> Chris Green wrote:
>
> > Both 2A and 3A are well beyond the USB specifications, a 'perfect' USB
> > lead may not be capable of carrying those currents.
>
> You are mixing up things
>
> 2A/3A are provided by the chargers (well at least in the recent years).
> What you refer as "beyond" is for the basic standard able to provide the
> current.
>
> https://en.wikipedia.org/wiki/USB
>
All I'm saying is that the USB standard doesn't provide even 2 amps.
Thus a 'USB' cable that conforms to the USB specification doesn't need
to be able to carry that much current.

If a Pi requires more than the USB specification allows then its power
supply *and* cable are "more than USB".

--
Chris Green
·

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