Noctua NH-D15 chromax.black Built based on the legendary NH-D14 model and aiming to achieve the highest quiet cooling performance, the flagship model Noctua NH-D15 is an elite two-story radiator meeting the highest requirements. Extended heating pipe system and two high quality NF-A15 140 mm fans with PWM support for automatic speed control allow for even more enhanced award-winning performance of NH-D14. Additional information Equipped with a trusted professional installation system of multiple SecuFirm2TM sockets, proven thermal conductive paste Noctua NT-H1 and a full 6-year manufacturer guarantee, NH-D15 creates a complete solution of the highest quality, which is a luxury choice for overclockers and silent -enthusians alike.