dadong said:if only the cm stacker allows a 30cm fan on the side. and i think you can mount the psu on top too. correct me if i'm wrong.
yeah the atx/btx version of the case allows you to do this, but the other revision which is just atx has a second 120mm fan spot in place of the top psu bay, pretty good for someone without btx (i.e. everyone!).
yeah I dont think you can put the 30cm fan in just like that you'll need to mod it, it has a vent thats about 40 cm big, but there is only a spot for a 80mm fan on the side, i dont even use that, dont really need it.