I bought this case with the Corsair H115i RGB Platinum watercooling (300mm). The radiator goes easily in the front. But if you want to put it on top, be careful. I couldn't fix it completely because of the cables of the case (ignition, usb, jack) which are on top.
Also, I had to change the Corsair Vengeance RGB ram, because they were touching the heat sink! I took the G.Skill Trident Z RGB (which are borderline).
Too bad I can't post pictures here.

front for sure, top possibly . have installed the H150i (397mm)