Thanks to the 4 Dual-Heat-Pipes, 37 aluminium cooling fins with a total surface area of more than 3800cm² and soldered joints for optimal heat-transfer, the Noctua NH-U9 achieves superior cooling results that barely fall behind those of its big brother, the NH-U12. Its compact measurements and the utilisation of 80 or 92mm fans make the NH-U9 the first choice when mainboard and case compatibility is essential - no matter whether you use it for super-silent or ultra-high-performance cooling!