The NH-L9i is a premium quality quiet CPU cooler for Intel LGA115x based HTPCs and Small Form Factor systems. At a super-low profile of only 37mm, the NH-L9i is ideal for extremely slim cases and due to its 95x95mm footprint, it provides full compatibility with tall RAM modules and VGA cards on mini-ITX mainboards. The custom designed SecuFirm2™ mounting system for LGA115x makes installation a child’s play and thanks to the highly optimized NF-A9x14 premium fan that supports fully automatic speed control via PWM, the NH-L9i runs remarkably quiet. Topped off with Noctua’s renowned NT-H1 thermal compound, the NH-L9i fuses everything users have come to expect from Noctua’s larger coolers into a super-compact package for slim HTPC systems.
Caution: The NH-L9i is a highly-compact low-profile quiet 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 should be used with care on CPUs with more than 65W TDP (Thermal Design Power). Please consult our TDP guidelines to find out whether the NH-L9i is recommended for your CPU.
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 to 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.
LGA1150, LGA1155, LGA1156
Copper (base and heat-pipes), aluminum (cooling fins), soldered jointsnickel plating
92 x 92 x 14mm, 92 x 92 x 25mm
Scope of Delivery
NF-A9x14 PWM premium fan
Low-Noise Adaptor (L.N.A.)
NT-H1 high-grade thermal compound
SecuFirm2 Mounting Kit
Screws for 92x92x25mm fans
Noctua Metal Case-Badge
Noctua NF-A9x14 PWM
Max Rotational Speed (+/-10%)
Max Rotational Speed with L.N.A (+/-10%)
Min Rotational Speed (PWM) Max Airflow Max Airflow with L.N.A Max Acoustical Noise Max Acoustical Noise with L.N.A Input Power Voltage Range MTBF Item Dimension (L"xW"xH")
23.6 dB (A)
3.74 x 1.45 x 3.74
Max Airflow with L.N.A
Max Acoustical Noise
Max Acoustical Noise with L.N.A
Item Dimension (L"xW"xH")