I put the i7-9700K and GTX 1080 in the case and everything worked. I removed the middle fans, put the AIO heatsink in there, and rotated the fans on the back to push the air out. The case wasn't bad to handle given its size, and the many fans it contains seem to move quite a bit of air. The only problem I have is the drive attachment system. The disks are placed in guides with rubber and metal pins that hold the disks in place. At least one needle has popped out on each slide and is awkward to put back in. The sliding handles interfere with the SATA power and data connections. You can screw the discs into the rails, but I don't think you can do without the rails and plug them straight into the drive cages (which is nice). I also couldn't find a good way to easily remove the front case door. If you're buying a case, make sure you have 4-pin Molex fan connectors. All in all, this is a solid case and I'll probably get another one. I bought shelf rails to put under the closet but maybe I'm being too paranoid.
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