Noctua

Noctua NH-L9i

Status: Noctua NH-L9i: Unavailable on Amazon as of 2026-10-21 08:16 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The Noctua NH-L9i: 37mm total height clears HTPC and ITX cases that reject tower coolers; main trade-off: intel-only mount: LGA1150/1151/1155/1156/1200, no AMD AM4 or AM5 support.

Unavailable on Amazon as of 2026-10-21 08:16 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

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Original listing (currently unavailable) → Compare to similar cooling & fans

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ 37mm total height clears HTPC and ITX cases that reject tower coolers
✓ 95x95mm footprint never overhangs RAM slots or the PCIe x16 slot
✓ NF-A9x14 slim 92mm fan with PWM plus a Low-Noise Adaptor for quieter RPM caps
✓ NT-H1 thermal paste and SecuFirm2 mounting included, no extra purchase

Cons

✗ Intel-only mount: LGA1150/1151/1155/1156/1200, no AMD AM4 or AM5 support
✗ Sized for moderate heat loads, not overclocked or high-TDP i9 chips
✗ No LGA1700 support, so 12th-gen and newer Intel sockets are out
✗ Slim 92mm fan spins faster under load than a 120mm tower to match airflow

Manufacturer description

The Noctua NH-L9i solves the problem every ITX builder runs into: a cooler that clears the RAM and PCIe slots without giving up quiet operation. At just 37mm tall with a 95x95mm footprint that matches the LGA1200/1151 socket keep-out area exactly, it drops into HTPC chassis and small form factor cases where a tower cooler simply will not fit, and it never overhangs your memory or graphics card slot. Cooling comes from the NF-A9x14 slim 92mm fan, which supports PWM speed control and ships with a Low-Noise Adaptor if you want to cap RPM further for a near-silent living-room build. Noctua…

SpecPicks Verdict

SpecPicks scored Noctua NH-L9i using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Noctua's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Will the NH-L9i fit in my Mini-ITX case?

It stands 37mm tall with a 95x95mm footprint, so check your case's listed CPU cooler clearance is at least 37mm. That height is low enough for most HTPC and SFF chassis that reject tower coolers.

Does it block my RAM or graphics card?

No. The 95x95mm footprint matches the Intel socket keep-out zone, so it does not overhang the memory slots or the PCIe slots regardless of RAM heatspreader height.

Which CPU sockets does this cooler support?

Intel LGA1150, LGA1151, LGA1155, LGA1156, and LGA1200 via the included SecuFirm2 mounting system. There is no AMD support on this model.

Do I need to buy thermal paste separately?

No. Noctua includes a tube of its NT-H1 thermal compound along with the SecuFirm2 mounting hardware, so the box has everything needed for installation.

How loud is it, and can I make it quieter?

The NF-A9x14 slim 92mm fan supports PWM so your motherboard scales speed with CPU load, and the included Low-Noise Adaptor caps maximum RPM for near-silent operation in a living-room build.

Key Features

Ultra-compact low-profile cooler with only 37mm total height – ideal for HTPCs, ITX and Small Form Factor builds
100% compatibility RAM- and PCIe-compatibility due to 95x95mm footprint, does not overhang the RAM or PCIe slots
Highly optimised NF-A9x14 slim 92mm fan with PWM support and Low-Noise Adaptor for automatic speed control and ultra-quiet operation
Includes high-end NT-H1 thermal paste and SecuFirm2 mounting system for easy installation on Intel LGA1150, LGA1151, LGA1155, LGA1156, LGA1200
Renowned Noctua quality backed up by 6-year manufacturer’s warranty, deluxe choice for Intel Core i7, i5 or i3 with moderate heat load (e.g. 11900, 11700, 11600, 10700, see compatibility list)

Full Specifications

Brand	Noctua
Model	NH-L9i
Voltage	12 volts
Material	Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Unit Count	1 Count
Noise Level	23.6 db
Part Number	NH-L9i
Material Type	Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Cooling Method	Air
Number of Items	1
Air Flow Capacity	57.5 cubic meter per hour
Compatible Devices	Desktop
Included Components	Item
Power Connector Type	4-Pin
Warranty Description	6 year manufacturer’s warranty
Maximum Rotational Speed	2500 rpm
Item Dimensions L x W x H	3.74"L x 3.74"W x 1.46"H
Global Trade Identification Number	00842431014269, 04716123314875, 07967907179310
Full listing title	Noctua NH-L9i, Quiet High-Performance Low-Profile CPU Cooler \| Only 37mm Height, ITX SFF Low-Noise Cooling, For LGA1200/1151, 92mm Slim Fan, No RAM or PCIe Overhang, Rich Accessory Kit

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