The Noctua flagship model NH-D15 is a dual-tower cooler of elite class, based on the legendary NH-D14, and continues its pursuit of ultimate cooling performance with maximum quietness. With its wider heat pipe layout and two NF-A15 140 mm premium fans featuring PWM support for fully automatic speed control, the NH-D15 can further improve the award-winning efficiency of the NH-D14. The high-quality overall package of the NH-D15 is completed by the proven SecuFirm2™ professional mounting system and Noctua's renowned NT-H1 thermal paste. Whether for overclockers or silent enthusiasts, the NH-D15 is a premium solution for the highest demands.

Based on the award-winning NH-D14, which has received over 350 recommendations and awards from leading international hardware websites and magazines, the NH-D14 is one of the most successful premium coolers of all time. The NH-D15 achieves an even better silent cooling performance compared to the NH-D14, thanks to the wider arrangement of the heat pipes and the two NF-A15 fans.

The dual-tower construction with 6 heat pipes offers more cooling surface area, better heat distribution, and superior airflow efficiency in dual-fan operation compared to conventional single-tower coolers. The width of the cooling fins has been increased from 140 mm to 150 mm compared to the NH-D14, and the distance between the heat pipes has been increased. The improved heat distribution over a larger surface area achieved through these measures significantly contributes to the superior efficiency of the NH-D15.

Thanks to the recessed lower cooling fins, the NH-D15 provides 62 mm of clearance for tall memory modules in single-fan operation—most current high-end modules can be used without any issues.