Lowprofile tower design for better airflow efficiency
While most lowprofile coolers blow air towards the motherboard the NHD9L is a tower style cooler that bows parallel to the mainboard which allows for superior airflow efficiency in cases with front intake and rear exhaust fans that create an airflow path parallel to the mainboard.
Whereas classic 9cm coolers with up to 125mm height fit 4U rack mount cases the NHD9L?s reduced height of 110mm allows it to also fit 3U chassis. This makes it ideal for noisesensitive 3U applications in fields such as audio or video processing.
100% compatibility with PCIe cards on miniITX
Many Intel LGA115x based miniITX mainboards have the PCIe slot sitting right next to the 95x95mm socket zone. While larger coolers that exceed this zone are likely to block the PCIe slot the 95x95xmm sized NHD9L provides full compatibility with PCIe cards be it on ATX microATX or ITX.
NFA9 premium fan
The highly optimised NFA9 premium fan features Noctua?s proprietary AAO frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels which allows it to further improve the renowned efficiency of Noctua?s previous 92mm models and contributes to the NHD9L?s superior cooling performance.
Dual fan ready
The NHD9L includes an extra set of fan mounting clips for users who want to achieve even better cooling performance by adding a second optional NFA9 to the front fin stack. Using the ycable supplied with the NFA9 PWM retail fan both fans can be connected to one CPU fan header.
SecuFirm2 mounting system
Noctua's SecuFirm2 mounting systems have become synonymous with quality safety and ease of use. Supporting Intel LGA115x LGA1150 LGA1151 LGA1155 LGA1156 LGA2011 and AMD AM3+ AM2+ FM1 FM2+ the SecuFirm2? mounting included with the NHD9L guarantees perfect contact pressure and maximum convenience on all current sockets.
PWM support and LowNoise Adaptor
The NFA9 92mm fan supplied with the NHD9L supports PWM for convenient automatic speed control through the mainboard. In addition the maximum fan speed can be reduced from 2000 to 1550rpm using the supplied LowNoise Adaptor for even quieter operation