"The Thermaltake V9 Black Edition was designed to be quite a windstorm, but also to be very quiet because no one wants the sound of a box fan sitting next to them. You'll immediately notice the huge 230mm intake fan located on the left side panel. This is positioned to blow cool air directly onto the entire motherboard area, including CPU, memory, graphics, etc. This will be especially crucial when building a high performance dual graphics rig, and/or overclocking your components. Add to this the same huge 230mm exhaust fan located directly above the motherboard/CPU area, but instead this time it's on top of the chassis. This is designed to suck the hot air being expelled from the red hot CPU/Chipset/Memory area of the motherboard. So cool air in the side, it gets hot and exhausts right out the top. A potent combination of airflow it is and a must for today's ultra fast gaming rigs."