No fans, no water, completely silent with no maintenance other than the usual dust clearing.
Aside from the rather dorky looking design, it is rare these days to see passively cooled computing hardware that doesn’t give bargain basement performance. This is no Eevee card by the way if you need to make heavy use of graphics, but for a young person who does not mind maxing out his games at 1080p, this will do just fine.
It makes me wonder, what is the most powerful machine that can be made today with passive cooling, what would it look like, can it use Blender for decent quality scenes?