Thought of an idea. If high end 40 series really do turn out to be 4 1/2 slot cards, they will still be able to fit in the slate case. Just mount the graphics card where the radiator is supposed to go. You could even probably fit a radiator where the gpu is supposed to go as well, so you wouldnt be losing out on cooling. Im not 100% this will work, but from looking at the pictures on the protolyth site, it looks viable. Thats why i love this case so much, so many possibilities and extremely friendly design with regards to modding and watercooling!