It may not look like it at first glance but Corsair's AIR 540 can fit an EATX motherboard inside, it can also fit a mATX board but that might look a little odd inside a case this large.  The extra depth that is obvious in the picture serves two purposes, firstly to create two chambers as the PSU is installed beside the add in card bays, not below or above and secondly to ensure even the tallest CPU cooler can be installed with plenty of spare room around it.  The intake filters are completely removable and it is quite easy to do so, a theme carried on throughout this chassis.  Take a look at the full review at [H]ard|OCP.

"Corsair is adding a somewhat nonconformist computer case design to its product stack with the AIR 540. Its product features tout better cooling, easier adaptation of high end air and water cooling, all while being a quieter solution. The AIR 540 looks to be a simple cube shape, but inside it holds an uncommon dual chamber design."

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