The NH-L9i chromax.black is an all-black version of Noctua’s award-winning NH-L9i low-profile quiet CPU cooler for HTPCs and Small Form Factor (SFF) builds. Thanks to the same proven heatsink design and NF-A9x14 PWM fan, it stays true to the NH-L9i’s successful formula of fusing a height of only 37mm with strong performance and excellent quietness of operation, as well as 100% RAM and PCIe compatibility. At the same time, the chromax.black version with its black fan and black coated heatsink combines these assets with a sleek stealth look. Topped off with the renowned SecuFirm2™ low-profile mounting system for Intel LGA115x, Noctua’s enthusiast-grade NT-H1 thermal compound and a full 6-year manufacturer’s warranty, the NH-L9i chromax.black is a premium choice for customers who seek an ultra-compact heatsink that looks just as great as it cools.
The NH-L9i is a highly compact, quiet low-profile cooler designed for use in small form factor cases and HTPC environments. While it provides first-rate performance in its class, it is not suitable for overclocking and or CPUs that create high heat loads. Please consult our CPU compatibility list to find out whether the NH-L9i is recommended for your CPU.
Award-winning NH-L9i cooler
Tens of thousands of enthusiast users all over the world swear by the NH-L9i’s quality and performance. Recommended by more than 150 international hardware websites and magazines, it is renowned as being one of the best low-profile coolers on the market.
The NH-L9i chromax.black is black from head to toe: Featuring a black coated heatsink, a black fan with black anti-vibration-pads, black fan screws and black mounting parts, it’s right at home in all-black builds and easy to integrate with other colour schemes.
37mm low profile
Due to the slim 23mm heatsink and the NF-A9x14 low profile fan that measures only 14mm in thickness, the NH-L9 stands a mere 37mm tall, which makes it ideal for use in compact HTPCs or Small Form Factor cases that offer minimum clearance for CPU coolers.
100% RAM compatibility
The NH-L9i has a 95x95mm footprint that complies exactly with the Intel LGA115x socket keep-out zone. This means that it won't cause issues with chipset coolers and doesn't overhang the RAM slots, so it's fully compatible with tall memory modules.
100% compatibility with PCIe cards on mini-ITX
Most Intel LGA115x based mini-ITX motherboards 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 NH-L9i provides full compatibility with PCIe cards.
NF-A9x14 PWM premium fan
The highly optimised NF-A9x14 premium fan features Noctua's proprietary AAO frame as well as sophisticated aerodynamic design measures. Supporting PWM for fully automatic speed control, the NF-A9x14 allows the NH-L9i to stay remarkably quiet.
Allowing the maximum speed of the NF-A9x14 PWM fan to be reduced from 2500 to 1800rpm, the included Low-Noise Adaptor (LNA) makes it possible to achieve near-silent setups with suitable CPUs that only create smaller heat loads.
Custom-designed SecuFirm2™ mounting for LGA115x/1200
The NH-L9i bundles a custom-designed, backplate-less SecuFirm2™ mounting system for LGA115x/1200 that offers extended compatibility with mini-ITX boards and makes installation easier than ever, all while maintaining the trusted SecuFirm2™ quality.
Optional SecuFirm2™ mounting kit for AMD AM4
While the NH-L9i’s construction is tailored to the keep-out zone of Intel’s LGA115x platform, it can be installed on many AMD AM4 boards using the optional NM-AM4-L9aL9i mounting kit, which can be ordered on Noctua’s website free of charge.
NT-H1 thermal compound
Noctua’s much-acclaimed NT-H1 is a pro-grade TIM solution that provides minimum thermal resistance, excellent ease of use and outstanding reliability. Chosen again and again by overclockers and enthusiast users worldwide, it has established itself as a benchmark for premium-quality thermal compounds.
Soldered interface between heatpipes and fins
With many heatsinks, the fins are press-fitted to the heatpipes. Due to the different thermal expansion coefficients of copper and aluminium, this fit can loosen over years of thermal cycling, which may lead to reduced performance. By contrast, the NH-L9i’s fins are soldered to the heatpipes in order to guarantee a superior thermal interface that doesn’t deteriorate even after many years of usage.
6-year manufacturer’s warranty
Noctua products are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the supplied NF-A9x14 features an MTTF rating of more than 150.000 hours and the entire NH-L9i package comes with a full 6-year manufacturer's warranty.
Height (without fan)
Width (without fan)
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Weight (without fan)
Height (with fan)
Width (with fan)
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Weight (with fan)
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Scope of delivery
Black coated NH-L9i heatsink
NF-A9x14 HS-PWM chromax.black premium fan
Low-Noise Adaptor (L.N.A.)
NT-H1 high-grade thermal compound
Black SecuFirm2™ Mounting Kit
Black Screws for 92x92x25mm fans
Noctua Metal Case-Badge
Model : Noctua NF-A9x14 HS-PWM chromax.black
Bearing : SSO2
Max. rotational speed (+/- 10%) : 2500 RPM
Max. rotational speed with L.N.A. (+/- 10%) : 1800 RPM
Min. rotational speed (PWM, +/-20%) : 600 RPM
Max. airflow : 57,5 m³/h
Max. airflow with L.N.A. : 40,8 m³/h
Max. acoustical noise : 23,6 dB(A)
Max. acoustical noise with L.N.A. : 14,8 dB(A)
Input power : 2,52 W
Voltage range : 12 V
MTTF : > 150.000 h
Price, feature and specifications are subject to change without notice.