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Noctua

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

Name: 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
Brand: Noctua
SKU: B009VCAJ7W
Price: 49.95 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$49.95

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View Current Price on Amazon → Compare to similar cooling & fans

*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.

Bottom line: The 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 is a niche pick — read recent reviews before buying in the cooling & fans category, priced around $49.95. Compare close alternatives before committing.

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, Quiet High-Performance Low-Profile CPU Cooler | Only… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis 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. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by Noctua's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

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

Ready to buy?

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 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-04-19. Price and availability subject to change.