FWIW, the case is a Corsair A540 with hard drive sleds in the two 5.25" bays: http://www.corsair.com/en-us/carbide-series-air-540-high-airflow-atx-cube-case htt

FWIW, the case is a Corsair A540 with hard drive sleds in the two 5.25" bays: http://www.corsair.com/en-us/carbide-series-air-540-high-airflow-atx-cube-case http://www.corsair.com/en-us/carbide-series-air-540-high-air... Makes sense to me, since you want the best airflow possible getting to the cards in a multi-GPU setup, and unlike in conventional cases, the A540 doesn't have a drive cage between the front fans and the video cards.