The Zalman CNPS9700 CPU Cooler is a top notch high end cooler that outperforms all other air-cooled CPU coolers as well as some internal water-cooling systems, while maintaining Zalman"s renowned reputation for ultra quiet fan operation. The primary innovation lies in the patented "figure 8" shape bending of its three heat pipes to produce results equivalent to six heat pipes. The aerodynamically designed ultra slim copper heat sink fins, and their optimized performance layout, maximizes cooling efficiency and performance while minimizing airflow resistance and overall weight. This CPU Cooler features a 110mm fan with a larger surface area and heat sink over the 92mm fan of the CNPS9500 series.