The picture that depicts the AIO is coolermaster's in house Masterliquid series of AIO's. If you're using their products you can go with that but please keep in mind that the picture also shows that a motherboard devoid of any heatsinks on the VRM area was used. So that is the likely reason why you don't see 240/280mm radiator support. You could mod the case and allow it to accept the rad of your choosing but then again if you have access to other cases, you should move with one that has native 240/280mm radiator support like those that come from Phanteks or the MasterBox series.