what are these rubber holes on the back of the pc case?
What are the rubber circles for on the back of my pc case? Should I just leave them like that if don't have a need for them? Or are they likely to let I'm dust into the motherboard?
Edit: thanks for all the replies, so just for water cooling I have no need for.
Is that an NZXT? It looks almost exactly like my old case I just repurposed. (And yes, it's for water cooling but those cases have exceptional air cooling so it was never that important.)