The data sheet for https://freewiretech.com/products/dc-boost-charger/ says for Max Output Power (DC):
CCS: 120 kW
CHAdeMO: 100 kW
Combined: charge 2 vehicles simultaneously at up to 60 kW each
I've seen at least two in CA on Plugshare. https://www.plugshare.com/location/262762 is one. I found https://www.youtube.com/watch?v=7RndvcE8Q5k but haven't watched more than a few seconds.