I bought my rower many years ago (I actually also owned the original wooden on while I lived in the US).
It seems they have changed the name of it over time - when I bought it they called it the model D. Now it’s apparently the RowErg - I think it’s the same thing (but call them up to make sure - they have a Swiss number I think to contact and the service is good - I used to interact with them in the past).
I got it with the PM5 computer.
Concept2 builds the best machines for rowing workouts. I’m very pleased with my machine.