737 Max CPDLC
The ones I flew before they were grounded just had ACARS, the same as the NGs we were flying at the time. Presumably as they come back into service CPDLC will be retrofitted as required, just like the NG, and at some point new builds will be delivered with it already installed. The interface for the pilots is through the FMC CDUs, so pretty much identical for MAX and NG.
