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Item#: N82E16835608029

Noctua NH-L9i 95mm SSO2 CPU Cooler

  • Low profile fan, 14mm in thickness
  • Fully compatible with tall memory modules
  • PWM for fully automatic speed control
  • Included Low-Noise Adaptor

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Designed and optimized for Intel LGA115x processor with not more than 65W TDP, the Noctua NH-L9i is a premium grade CPU cooler that delivers excellent cooling capacity and quiet operation in an ultra compact package. Measuring only 37mm in height, this cooler flawlessly fits most HTPCs and small factor form systems, and the 95 x 95mm footprint means it will not even block the first RAM slot and the closest PCIe slot on mini-ITX motherboard. The highly efficient NF-A9x14 fan supports fully automatic speed control via PWM. A Low-Noise-Adaptor can be used when necessary, to reduce maximum fan speed from 2500 to 1800rpm. And with the solid, easy-to-use SecuFirm2 mounting system plus renowned NT-H1 thermal compound, the NH-L9i fuses everything users have come to expect from Noctua’s larger coolers into a super-compact package.

Caution: Caution: The NH-L9i is a highly-compact low-profile quiet cooler designed for use in small form factor cases and HTPC environments. While it provides first rate performance in its class, it is not suitable for overclocking and should be used with care on CPUs with more than 65W TDP (Thermal Design Power).

37mm Low Profile

General information

Due to the slim 23mm heatsink and the NF-A9x14 low profile fan that measures only 14mm in thickness, the NH-L9 stands a mere 37mm tall, which makes it ideal for use in compact HTPCs or Small Form Factor cases that offer minimum clearance for CPU coolers.

100% RAM Compatibility

General information

The NH-L9i has a 95x95mm footprint that complies exactly to the Intel LGA115x socket keep-out zone. This means that it won’t cause issues with chipset coolers and doesn’t overhang the RAM slots, so it’s fully compatible with tall memory modules.

100% Compatibility with PCIe Cards on mini-ITX

General information

Most Intel LGA115x based mini-ITX mainboards have the PCIe slot sitting right next to the 95x95mm socket zone. While larger coolers that exceed this zone are likely to block the PCIe slot, the 95x95xmm sized NH-L9i provides full compatibility with PCIe cards.

NF-A9x14 PWM Premium Fan

General information

The highly optimized NF-A9x14 premium fan features Noctua’s exclusive AAO frame as well as sophisticated aerodynamic design measures. Supporting PWM for fully automatic speed control, the NF-A9x14 allows the NH-L9i to stay remarkably quiet.

Low-Noise Adaptor

General information

Allowing reducing the maximum speed of the NF-A9x14 fan from 2500 to 1800rpm, the included Low-Noise Adaptor (L.N.A.) makes it possible to achieve near-silent setups using CPUs with less than 65W TDP.

Custom-Designed SecuFirm2 Mounting for LGA115x

General information

The NH-L9i bundles a custom-designed, backplate-less SecuFirm2 mounting system for LGA115x that offers extended compatibility with mini-ITX boards and makes installation easier than ever, all while maintaining the trusted SecuFirm2 quality.

NT-H1 Thermal Compound

General information

Noctua’s much-acclaimed NT-H1 is a well proven pro-grade TIM solution that provides minimum thermal resistance, excellent ease-of-use and outstanding reliability.


Learn more about the Noctua NH-L9i

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 6 years
  • Limited Warranty period (labor): 6 years
  • Read full details

Customer Reviews of the Noctua NH-L9i

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  • Kai P.
  • 5/12/2016 3:25:15 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSolid performance in a great form factor

Pros: Works very nicely on an i7 6700 in an ITX setup. Probably quieter than the stock cooler, but it performs much better and the mounting mechanism is far more secure. Doesn't interfere with anything else on the board either.

Cons: NA

Other Thoughts: Specs:
- i7 6700
- Gigabyte Z170N G5
- 16GB RAM
- PicoPSU 160W
- L1 case
- 240GB SSD
- 16GB G.SKILL DDR4

Without a doubt the best quality packaging I've ever seen. Good stuff

Did you find this review helpful? Yes No

  • Jason W.
  • 4/29/2016 11:46:35 AM
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsNoctua NH-L9i 95mm SSO2 CPU Cooler

Pros: Quiet
Very Low Profile
Great Build Quality
6 Year Warranty
Good Packaging Plenty of Padding to Protect Heatsink and Fan

Cons: None

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  • Vladimir M.
  • 3/16/2016 8:12:57 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNoctua Performance and Quality!

Pros: - Dead Quiet
- Keeps an I7-6700K under 27 Degrees when not under load.
- Under load doesn't go above 48 (to date)
- No LEDs. (5*)
- Well protected Cable
- Included thermal paste for more than 1 application

Cons: - Wires going coming from the fan are not long enough in my opinion
- it would be interesting to see Noctua create a snug somewhere along the fan or the heatsink itself to hide the cable away so it doesn't flop around like it owns the place (but that's a design issue, not a product issue)

Other Thoughts: I'm overall really happy with this cooler. does exactly what I want it to do and more.
in a i7-6700K SFF build and it's library quiet.

3 out of 3 people found this review helpful. Did you? Yes No

  • Jordon B.
  • 3/8/2016 10:30:15 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsNoctur NH-L0i Tip on corect cpu power headed on Asus z170itx

Pros: I'm building a HTPC using mini ITX z170i Asus and a skylark 4core 65watt CPU. While this fans 65 max wattage would seen ok, it does keep the caps on on of the two corners without a path of cooling air. Stick with the stock por get a bigger casze and find a taller cooler that circulates 360 and you should be fine. Also use the CPU power socket closest to the corner. There are 2 right next to each other and the other one made my stock fan herky jerky. Probably for case fans. The one near the edge of the board it the correct one.

Cons: Design blocks two side almost to chip level so there's no circulation to any components blocked.

Other Thoughts: Asus z170i Boards from Neg egg have no instructions and no driver disk. Not much of a problem but I've built about 700 different servers atc.

0 out of 9 people found this review helpful. Did you? Yes No

  • Kristopher t.
  • 2/24/2016 3:47:45 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsCompact and quite

Pros: I bought this for a low profile mini itx motherboard and case. It overhangs the socket a little bit but is well clear of the main memory or any other components. With the low RPM adapter the fan is virtually silent when idle, and reasonably quite under full load.

My idle temperatures with a 65 watt i3 6300 CPU is almost exactly 30c. Under 11 minutes of combined prie95 with small ffts and furmark in GPU burn test the temperatures peaked at 88c. For what I intend to use the computer for, that is acceptable. If you are going using a processor with a TDP greater than 65 watts, or you are planning to put your 65 watt CPU under load for extended periods of time, this cooler won't cut it.

The cooler is must be mounted on the board outside of the case, but otherwise it is really easy to install. High quality components and packaging. It even came with a fancy metal case badge. I will be buying notcua again, very pleased.

Cons: For me, none.

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  • Scott F.
  • 2/12/2016 2:31:45 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNice! Quiet. Keeps 4790Ks cool.

Pros: I bought two of these for i7 4790Ks even though they're only rated for 65 watts TDP or less. They are extremely quiet. My CPUs (not overclocked) idle at 29-31c and playing Fallout 4 at 33-35c. I quit the game and had Speccy running already and that's what it read so maybe it goes a couple degrees higher. Stressing the cpu's with CPUz will top the temps out at about 73c after a few minutes. That's a bit warm but I read 90-100c is when to worry, and anything is better than the loud stock intel coolers. Installation is really simple. No brackets. Just screw it in through the back of the mobo. Doesn't touch the RAM.

Cons: None.

Other Thoughts: There is enough thermal paste (grey/silver in color) for a pea size application with a little left over. Excellent packaging with dense grey foam. They are barely audible with the case off and I did not use the noise dampening cable that came with the coolers. The coolers are of high-quality construction and heavy. I'm a new Noctua fan.

Did you find this review helpful? Yes No

  • Eka S.
  • 2/9/2016 3:01:31 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsNot worth upgrading over the stock cooler

Pros: was very well built
easy to install
relatively low noise

Cons: did not perform substantially better compared to the stock cooler at low load/high load

3 out of 4 people found this review helpful. Did you? Yes No

  • Brian T.
  • 2/2/2016 3:40:41 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsCan't Go Wrong

Pros: Quiet
Size/Low Profile
Secondary Accesories

Cons: Color

Other Thoughts: I bought this to replace the CPU cooler that came with my CPU. Installation is a breeze and the cooler is easily removable. The size of this helps free up a small amount of space, that would have otherwise been taken up by much bigger CPU coolers. This cooler comes with Thermal Paste and a special cord that limits the RPM's so it doesn't become so audible. There really isn't too much to tell here, you get a little extra for what you pay for, and it does its job extremely well. My only problem with this product is the factory set color, which doesn't blend well with anything in most PC setups. If they offered this in black, it would be perfect.

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 1/9/2016 8:59:13 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsIt is a true Noctua grade.

Pros: Beautiful and well designed.
Good material
Very, very quiet
Well suit my H-frame mini
CPU temp 29-31C idle

Cons: There is always one side being blocked. Either the RAM or the CPU power supply heatsink. Luckily, this wont influence the cooling much

Did you find this review helpful? Yes No

  • Alexander M.
  • 1/9/2016 2:10:39 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Fan, Quiet!

Pros: I bought this for my HTPC to cool my CPU. It fit very well into the small case I had it enclosed in and the fan makes not noise what-so-ever unless you hold your ear right up to the case itself. Keeps the CPU nice and cool as well. Installation was really fast.

Cons: There really was nothing I did not like about this product.

Other Thoughts: I would recommend to anyone who has a small form factor case that needs a great cooling solution.

Did you find this review helpful? Yes No

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Item#: N82E16835608029
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