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Noctua nh-l9i-17xx ultra-low-profile CPU cooler, 37mm, nf-a9x14 pwm fan, intel lga1700 lga1851, beige/brown
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Noctua nh-l9i-17xx ultra-low-profile CPU cooler, 37mm, nf-a9x14 pwm fan, intel lga1700 lga1851, beige/brown
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Description
Item No.
a3dca581-97ac-42e4-a91c-5634f6671dea
Noctua NH-L9i-17xx 37mm Ultra-Low-Profile CPU Cooler
Ultra-Low-Profile 37mmNF-A9x14 FanIntel LGA1700/1851100% RAM Clearance
The Noctua NH-L9i-17xx is a premium ultra-low-profile CPU cooler just 37mm tall, made for the smallest Intel LGA1700 and LGA1851 builds. Two nickel-plated heatpipes and a 54-fin heatsink pair with Noctua’s renowned NF-A9x14 HS-PWM fan in a 95 x 95 mm footprint that guarantees 100% RAM and PCIe clearance. Part number NH-L9i-17xx, it ships with SecuFirm2 mounting and NT-H1 p
Attributes
Aoi Cooler Characteristics
- Supported CPU Sockets: Socket 1700, Socket 1851
Details
Noctua NH-L9i-17xx 37mm Ultra-Low-Profile CPU Cooler
Ultra-Low-Profile 37mmNF-A9x14 FanIntel LGA1700/1851100% RAM Clearance
The Noctua NH-L9i-17xx is a premium ultra-low-profile CPU cooler just 37mm tall, made for the smallest Intel LGA1700 and LGA1851 builds. Two nickel-plated heatpipes and a 54-fin heatsink pair with Noctua’s renowned NF-A9x14 HS-PWM fan in a 95 x 95 mm footprint that guarantees 100% RAM and PCIe clearance. Part number NH-L9i-17xx, it ships with SecuFirm2 mounting and NT-H1 paste. It is ideal for tiny ITX and HTPC cases with efficient CPUs. Typically in stock with fast delivery across Cyprus.
Compatibility — check before buying:
Mounts on Intel LGA1700 and LGA1851 only via the included SecuFirm2 kit — it is not anAMD cooler (see the NH-L9a for AM4/AM5). At just 37mm tall with a 95 x 95 mm footprint it fits ultra-slim cases and keeps 100% RAM and PCIe clearance. As a low-profile cooler it targets efficient and mainstream CPUs, not high-heat or overclocked flagships.
Best For
✓Ultra-compact Intel ITX and HTPC builds
✓Cases with extremely limited cooler clearance
✓Quiet, efficient LGA1700 or LGA1851 systems
✓Builds needing full RAM and PCIe clearance
✓Office, media and mini-PC machines
✓Users who value Noctua quality and long life
Key Features
True 37mm Low-Profile
At only 37mm tall with a 95 x 95 mm footprint, it fits the slimmest cases where nothing else will, without overhanging RAM or the top PCIe slot.
NF-A9x14 HS-PWM Fan
Noctua’s award-winning 92mm slim fan runs 0-2,500 RPM at up to 29.72 CFM and just 23.6 dBA, with an included Low-Noise Adaptor for near-silent running.
LGA1700 / 1851 Ready
Purpose-made for current Intel desktop sockets, cooling efficient and mainstream processors in space-constrained systems.
Complete Noctua Kit
Includes the SecuFirm2 mounting system, NT-H1 thermal compound and a metal case-badge, backed by Noctua’s reputation for quality.
Technical Specifications
| Identification | |
| Brand | Noctua |
| Model | NH-L9i-17xx |
| Part Number | NH-L9i-17xx |
| EAN / GTIN | 9010018000276 |
| Type | Ultra-low-profile air CPU cooler |
| Heatsink | |
| Height | 37 mm (23 mm without fan) |
| Footprint | 95 x 95 mm |
| Weight (with fan) | 430 g |
| Heatpipes | 2x 6 mm, nickel-plated |
| Fins | 54 aluminium |
| Fan | |
| Fan | NF-A9x14 HS-PWM, 92 x 92 x 14 mm |
| Fan Speed | 0-2,500 RPM (PWM) |
| Airflow | 29.72 CFM |
| Noise | Up to 23.6 dBA |
| Included | SecuFirm2 kit, NT-H1 paste, Low-Noise Adaptor |
| Compatibility | |
| Intel Sockets | LGA1700, LGA1851 |
| AMD Sockets | None (see NH-L9a forAMD) |
| Warranty | 1-Year Warranty (Singular) |
Frequently Asked Questions
How tall is the NH-L9i-17xx?
Just 37mm with the fan (23mm without), on a 95 x 95 mm footprint — one of the slimmest coolers available for building in very tight cases.
Which sockets does it support?
Intel LGA1700 and LGA1851 only. ForAMD AM4/AM5 you need the NH-L9a version instead.
Does it keep RAM and PCIe clear?
Yes. Its compact footprint guarantees 100% memory and top-PCIe-slot clearance on ITX and mATX boards.
Is it enough for a high-end CPU?
It is a low-profile cooler for efficient and mainstream chips. For hot or overclocked flagships, a taller cooler or AIO cools far better where space allows.
Singular Expert Insight
The NH-L9i-17xx is the go-to for the very smallest Intel builds where 37mm is the hard limit. It trades outright capacity for fit, so pair it with efficient CPUs; if your case allows 65mm, the NH-L9x65 adds heatpipe area and cooling. Browse taller options in our CPU coolers range. For SFF builds, also confirm your power supply and case leave clearance around the socket.
Buyer's Guide
Buy it if
You are building the smallest possible Intel LGA1700/1851 PC and need quiet, quality cooling at just 37mm.
Skip it if
You have anAMD platform (get the NH-L9a), more case height available, or a high-TDP CPU that needs more cooling.
Also consider
The taller NH-L9x65 if your case allows 65mm, or the NH-L9a forAMD builds.