Not very sure about the 200mm,I don't have a 200mm to try it for you It does have three different fixing holes, so I imagine coolmaster have catered for this.It seems to be easy to buy a blue 230mm, but not so many companies have the off/on switch facility, which is incorprated in the haf x...Can I ask which mobo you are fitting..I have two of these cases, one blue and one red, both with gigabyte mobo's..They really are brilliant cases.