The NH-L9i-17xx is the stealth all-black version of the already excellent NH-L9i is NOCTUA’s premium low-profile CPU cooler designed for Intel LGA17xx platform. Based on NH-L9 CPU cooler for SFF and HTPC systems. Only 37mm high it is suitable for extremely slim cases. With its narrow design it clears RAM and PCIe sockets and allows easy access to near-socket connectors even on Mini-ITX motherboards. With it’s NF-A9x14 92mm fan with PWM control it is whisper-quiet. In addition with NOCTUA’s NT-H1 thermal compound it is the best choice for low power ITX system builds with Intel CPUs or APUs.

NOTE: The NH-L9i-17xx 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 manufacturer’s CPU compatibility list to find out whether the NH-L9i-17xx is recommended for your CPU.


Socket compatibilityIntel LGA1700
Size (HxWxD – no fan)23x95x95 mm
Size (HxWxD – with fan)37x95x95mm
MaterialCopper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Fan compatibility92x92x14mm, 92x92x25mm
Fan includedNoctua NF-A9x14 HS-PWM
Max. rotational speed (+/- 10%)2500 RPM
Min. rotational speed (PWM, +/-20%)600 RPM
Max. airflow57,5  m³/h
Max. acoustical noise23,6 dB(A)
Package ContentBlack coated NH-L9i heatsink, NF-A9x14 HS-PWM premium fan, Low-Noise Adapter (L.N.A.),NT-H1 high-grade thermal compound, Black SecuFirm2™ Mounting Kit, Black Screws for 92x92x25mm fans, Noctua Metal Case-Badge

More details can be found on manufacturer’s website.

Weight0.63 kg
Dimensions9.5 × 9.5 × 2.3 cm
Intel’s new 12th generation Core processors (Core i9-12900K(F), Core i7-12700K(F), Core i5-12600K(F), etc.) are based on the entirely new LGA1700 socket. Due to its different mounting hole pattern and stack-up height (height of the CPU and socket combined), LGA1700 requires a new mounting mechanism for CPU coolers.Noctua is in the process of updating most of their multi-socket CPU cooler models to include LGA1700 mounting hardware. Please see their ‘timeline of Noctua coolers to include LGA1700 mounting hardware’ to check which model will be updated when, and this FAQ for how to verify if your cooler already includes LGA1700 mounting hardware.For coolers that do not yet include LGA1700 mounting hardware, Noctua offers a direct free-of-charge mounting-upgrade kits (NM-i17xx-MP83 for coolers with 83mm mounting pitch and NM-i17xx-MP78 for coolers with 78mm mounting pitch). Please see this FAQ to check which kit is required for your cooler.A proof of purchase of both an eligible Noctua CPU cooler (i.e. invoice) and either an LGA1700 CPU or an LGA1700 motherboard is required for ordering the kits free of charge via Noctua's website.More information can be found on Noctua's website HERE.


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