Does anyone know if this or the full sized one is quieter? I'm not going to overclock and all I want is a near silent computer.

any cooler noctua makes is quiet - i had that cooler and it left me slightly under-whelmed, and i was thinking it'd be a much better cooler with 4 heatpipes, vs the two it comes with. About 2 weeks later they released the same cooler, slightly taller, with 4 heatpipes - i'd suggest going with that one, fwiw

Can I use liquid metal for this cooler?

I wouldn't. Liquid Metal is for de-lidding and replaces the questionable TIM Intel uses between the CPU core and the lid, not between the lid and a heatsink.

Will this fit in a mini-stx case such as the silverstone vt02?

There is no issue with the size of the cooler itself. Silverstone's VT02 is able to fit a cooler up to 46mm tall, and the NH-L9i stands at about 37mm. However, there could potentially be a compatibility issue with the motherboard as some of its components (capacitors, rear IO, etc.) could prevent the cooler from being installed properly. Some mini- and micro-STX boards are designed primarily with small circular coolers like Intel's stock solution in mind. Keep this in mind.

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Noctua NH-L9i, Quiet High-Performance Low-Profile CPU Cooler

Product ID: 1202724

Details

Air Flow Capacity
57.5 cubic per
Brand
Noctua
Compatible Devices
Desktop
Cooling Method
Air
Material
Copper (base &
Maximum Rotational Speed
2500 rpm

🌀57.5 m³/h airflow

📏37mm ultra-low profile

🔇23.6 dB whisper-quiet noise

AR$208054

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Cool your rig, not your vibe—ultra-quiet power in a tiny package!

TRUSTED DURABILITY - Backed by Noctua’s legendary 6-year warranty—engineered for reliable cooling on Intel Core i3, i5, and i7 CPUs.
WHISPER QUIET COOLING - Optimized 92mm NF-A9x14 fan with PWM and Low-Noise Adaptor delivers powerful airflow at just 23.6 dB.
SLEEK COMPACT DESIGN - Only 37mm tall—perfect for space-conscious HTPC and ITX builds without sacrificing performance.
EFFORTLESS INSTALLATION - Includes premium NT-H1 thermal paste and SecuFirm2 mounting system for hassle-free Intel LGA socket compatibility.
ZERO RAM PC IE INTERFERENCE - 95x95mm footprint ensures no overhang, keeping your memory and expansion slots fully accessible.

The Noctua NH-L9i is an ultra-compact, low-profile CPU cooler designed for HTPCs and small form factor builds. With a minimal 37mm height and a 95x95mm footprint, it avoids blocking RAM or PCIe slots. Its high-performance 92mm NF-A9x14 fan offers 57.5 m³/h airflow at a whisper-quiet 23.6 dB noise level. Compatible with multiple Intel LGA sockets, it includes premium thermal paste and an easy-to-install mounting system, all backed by a 6-year warranty for dependable cooling on Intel Core processors.

Specifications

ASIN	B009VCAJ7W
Air Flow Capacity	57.5 cubic meter per hour
Best Sellers Rank	#116 in Computer CPU Cooling Fans
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (3,435)
Global Trade Identification Number	00842431014269, 04716123314875, 07967907179310
Included Components	Item
Item Dimensions L x W x H	3.74"L x 3.74"W x 1.46"H
Item Highlight	Only 37mm Height, ITX SFF Low-Noise Cooling, For LGA1200/1151, 92mm Slim Fan, No RAM or PCIe Overhang, Rich Accessory Kit
Item Weight	443 g
Manufacturer	Noctua
Material Type	Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Maximum Rotational Speed	2500 rpm
Model	NH-L9i
Noise Level	23.6 db
Number of Items	1
Part Number	NH-L9i
Power Connector Type	4-Pin
UPC	842431014269 731215283291 039281014277 115970979550 739197641290 163120668250 803982961730 872182807933 807320189206 168141422058
Unit Count	1 Count
Voltage	12 volts
Warranty Description	6 year manufacturer’s warranty

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