Hi achimede333,
The included PSU is 750W. We will revise the user manual soon.
RTX Pro 6000 is only recommended for the upcoming QNAP QAI-h1290FX NAS.
RTX Pro 4000 SFF can fit into the TVS-AIh1688ATX chassis and also power requirement.
RTX Pro 2000 will be supported in the future version of GPU driver update.