And a completely unrelated digital power line communication protocol based on homephy that has to be matched in the car.
Having said that, Tesla already did all the hard work to deliver CCS in the EU because it was required by law there.
Building an adapter to handle 300+ amps at 400V safely and developing the interface protocols is decidedly not straightforward, but they’ve mostly done it already and making an additional version for U.S. spec cars is relatively easy compared to what they’ve already done for the EU.
What I don’t know is whether they updated US charge ports when they updated the EU ones in May - right when the Raven updates we’re coming out, actually.
If not, all US cars will probably need a port replacement to use the adapter, like older EU cars do.