I meant if they have other GPUs normally available in the server auction. As far as I understand the servers in the server auction are mostly custom built ones for customers and once they stop renting them they land on the server auction for others to rent.
The one with the RTX 4000 seems to be a standardized line of products.
They briefly had GPU servers before. I believe they stopped when crypto messed up the gpu prices and supply. That's why you're seeing them in the auction now. But they usually go quick. This might change now since they have a brand new offering.
The old GPUs would have very litle memory by the way. Not ideal for AI.
https://www.hetzner.com/sb/#additional=GPU
Looks like currently there are only GTX 1080s on the server auction, I don't know if they normally have other GPUs available as well.