P400S fan question

[Guanzo]

 

Hello! I have Phanteks P400S Eclipse PC case. I have a problem about installing fans in this case.

 

How much fans should i buy, 120 or 140? I can't install 3x 120mm fans in rear side. C for example. 

 

can 140mm fan fits to A side? In picture

B : 2x 140mm 

C : 2x 140mm? 

 

Sorry for bad english. 

[MkaiL]

You know you can just check the specs on the manufacturers website right:

Front is C in your picture, top is B and rear is A

[LogicalDrm]

^ It comes with enough fans, those aren't issue. That case just has very restrictive front.

[WoodenMarker]

What are your specs and what are you looking for in your fans?