Noctua NH-D15 - Processor cooler - (for: LGA1156, AM2, AM2+, AM3, LGA1155, AM3+, LGA2011, FM1, FM2, LGA1150, FM2+, LGA1151, LGA2011-3 (Square ILM), AM4, LGA2066, LGA1200) - aluminum with copper base - 140 mm

PWM support and low-noise adaptor. The NF-A15 premium fans supplied with the NH-D15 support PWM for convenient automatic speed control through the mainboard. In addition, the maximum fan speed can be reduced from 1500 to 1200-rpm using the supplied low-noise adaptor for even quieter operation. Widened fin stack and expanded heatpipe layout. Compared to the NH-D14, the NH-D15s fin-stack has been widened from 140 to 150 mm and its heatpipes are now spaced further apart, which allows for a more uniform heat distribution over a larger surface area and thus contributes to the NH-D15s superior efficiency. Based on the award-winning NH-D14. Noctuas NH-D14 has received more than 350 awards and recommendations from leading international hardware websites and magazines, making it one of the most successful premium heatsinks ever built. With its expanded layout and dual NF-A15 fans, the NH-D15 further improves the D14s much acclaimed quiet cooling performance. Dual NF-A15 140 mm fans. The NH-D15 features two of Noctuas premium class NF-A15 140 mm fans. Complying with Noctuas AAO standard and featuring sophisticated aerodynamic design measures such as flow acceleration channels, the NF-A15 has quickly built up a reputation as one of the best 140 mm fans on the market. Excellent component cooling. Extending below the fin-stacks, the large NF-A15 fans not only contribute to the NH-D15s superb CPU cooling capabilities but also provide massive airflow over surrounding motherboard components and heatsinks, thus ensuring excellent component cooling performance. 6 heatpipe dual tower design. As compared to conventional single tower heatinks, the NH-D15s fine-tuned six heatpipe dual tower design provides more surface area, better heat-distribution and superior airflow efficiency in dual fan mode. High RAM compatibility in single fan mode. Thanks to its recessed lower fins, the NH-D15 provides 64 mm clearance for tall memory heatsinks in single fan mode, making it compatible with most high end RAM modules on the market. In dual fan mode, the NH-D15 should be used with standard height RAM.