Just wanted to share my simple mod that allows me to mount an AIO liquid cooler in the back compartment of the Tower 900.
First, I get that this is a case specifically designed for water cooling using custom loops. I may very well go in that direction at some point. But for now I'm using a Corsair H80i V2.
I selected the 120x120 cooler because I was under the impression that you could not mount a 140x280 cooler in this case. I haven't done that at this point, but I believe with the same mod it would be possible.
Please see pics.