Skip to main content
Noctua NH-L9i chromax.Black, 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
Noctua

Noctua NH-L9i chromax.Black

Bottom line: The Noctua NH-L9i chromax.Black: 37mm total height clears ultra-compact HTPC and SFF cases; main trade-off: intel-only mount: LGA1150/1151/1155/1156/1200, no AMD AM4 or AM5.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Check price on Amazon → Compare to similar cooling & fans

By , Founder & Editor-in-Chief · Listing data updated

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.

Pros & Cons

Pros

  • ✓ 37mm total height clears ultra-compact HTPC and SFF cases
  • ✓ 95x95mm footprint means zero RAM or PCIe overhang on any ITX board
  • ✓ 6-year Noctua manufacturer warranty, far above category norm
  • ✓ NF-A9x14 slim 92mm fan runs PWM with a Low-Noise Adaptor included
  • ✓ NT-H1 paste and SecuFirm2 bolt-through mounting bundled in the box

Cons

  • ✗ Intel-only mount: LGA1150/1151/1155/1156/1200, no AMD AM4 or AM5
  • ✗ Rated for moderate heat loads only; check Noctua's compatibility list
  • ✗ No LGA1700 support, so 12th-gen and newer Intel need a different SKU
  • ✗ 37mm heatsink limits headroom versus a tower on sustained all-core loads

Manufacturer description

The Noctua NH-L9i chromax.Black solves the hardest constraint in small-form-factor building: cooling an Intel CPU in a case that has no room for a tower. At only 37mm tall with a 95x95mm footprint, this low-profile cooler stays entirely inside the motherboard's socket keep-out zone, so you get 100% RAM and PCIe clearance on ITX, Micro-ATX, and ATX boards with no overhang to plan around. The NF-A9x14 slim 92mm fan handles the airflow, using PWM for automatic speed control plus a bundled Low-Noise Adaptor when you want it quieter still at idle. Noctua pairs it with NT-H1 thermal paste and the…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored Noctua NH-L9i chromax.Black 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 Noctua NH-L9i chromax.Black block my RAM or first PCIe slot?

No. The 95x95mm footprint matches the motherboard's socket keep-out area, so Noctua guarantees 100% RAM and PCIe compatibility on ITX, Micro-ATX, and ATX boards. Nothing overhangs the DIMM slots or the top PCIe slot.

Which Intel sockets does the NH-L9i chromax.Black fit?

The included SecuFirm2 mounting system supports Intel LGA1150, LGA1151, LGA1155, LGA1156, and LGA1200. It is not an AMD cooler, and LGA1700 is not on the supported list.

How much vertical clearance do I need in my case?

37mm total height, which is why it fits ultra-compact HTPC and Small Form Factor chassis where a tower cooler will not physically close the side panel. Confirm your case's stated CPU cooler clearance is at least 37mm.

What CPUs is this cooler actually rated for?

Noctua positions it for Intel Core i3, i5, and i7 chips with moderate heat load, naming the 11900, 11700, 11600, and 10700 as examples. Check Noctua's published compatibility list for your exact model before buying.

Is it quiet, and what is in the box?

The NF-A9x14 slim 92mm fan uses PWM for automatic speed control and ships with a Low-Noise Adaptor for quieter idle operation. The kit also includes NT-H1 thermal paste, SecuFirm2 mounting hardware, and a 6-year warranty.

Key Features

  • Proven premium heatsink (more than 100 awards and recommendations from international hardware websites), now available in an all-black design that goes great with many colour schemes
  • Only 37mm height allows it to fit ultra-compact HTPC and Small Form Factor (SFF) cases, 95x95mm footprint guarantees 100% RAM and PCIe compatibility on all ITX, Micro-ATX and ATX motherboards
  • Renowned, award-winning NF-A9x14 slim 92mm fan with Low-Noise Adaptor and PWM for automatic speed control: full cooling performance under load, whisper quiet at idle!
  • 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

BrandNoctua
ModelNH-L9i CH.BK
CPU SocketLGA 1200
Unit Count1 Count
Part NumberNH-L9i chromax.black
Mounting TypeChassis Mount
Number of Items1
Included ComponentsCable Body
Warranty Description6 year manufacturer’s warranty
Cooler Heatsink MaterialCopper and Aluminum
Item Dimensions L x W x H3.74"L x 3.74"W x 1.46"H
Cooler Heatsink CompatibilityIntel LGA1200, LGA1156, LGA1155, LGA1151, LGA1150
Global Trade Identification Number09010018000191
EU Spare Part Availability Duration6 years
Full listing titleNoctua NH-L9i chromax.Black, 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

Benchmark data for other processors

Ready to buy?

Noctua NH-L9i chromax.Black, 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 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related Cooling & Fans

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
Noctua NH-L9i chromax.Black, 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
View on Amazon →