Here we see the "core fan" a little better. You'll now also notice the drill holes where you can position the fan. The fan including the metal bar holding it can be unscrewed out of the completely by the way should for whatever reason something get in the way.

At the top you have plenty of room for the PSU, any model should fit perfectly. Below it the 120 mm rear fan. You can't read it but the fans rotate at 1000 RPM. Three of these push a good amount of air around the system and yet remain quiet at the same time.

Each of the included fans have both a power adapter that allows them to be mounted to a PSU or to your motherboard and 3-wire leads, and that is just fantastic to see. I love little detailed stuff like this.

Any graphics cards or PCI card can also be done with the help of the tool-less setup You simply push in the tap swing, open the clip, insert your card, and then close it. It works easy and well.