CPU coolers come and CPU coolers go, but only a select few really leave an impression on us. The GIGABYTE 3D Rocket II is one of those big impression makers. The Dual Rocket Airflow Design Fan Duct provides better performance and a silent environment. The 3D Rocket II may not be the first to use 2 fans on a CPU cooling device, but it's the first one that I know of that uses one of its fans to blow air down over the CPU and surrounding components. The cooler itself consists of 4 heatpipes, a copper base, and large aluminum fins, along with a Linear fan speed control that can mount in a free PCI bracket or upfront in a 3.5" bay.