Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - Newegg shopping upgraded ™

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Noctua NH-L9a-AM4, Premium Low-profile CPU Cooler for AMD AM4 (Brown)

Ships from Canada. Most customers receive within 3-9 days.

Sold and Shipped by Kanadian Best Inc. a-seller

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • Only 37mm total height, ideal for slim HTPC cases and Small Form Factor (SFF) builds
  • Compact footprint for 100% RAM and PCIe compatibility on ITX motherboards as well as easy access to near-socket connectors
  • Quiet, premium-grade NF-A9x14 fan with Low-Noise Adaptor and automatic speed control via PWM
  • Includes award-winning NT-H1 thermal compound and easy-to-install SecuFirm2 mounting system for the AM4 socket of AMD’s Ryzen CPUs and APUs
  • Trusted Noctua quality backed up with 6-year manufacturer's warranty

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
Noctua NH-L9a-AM4 Noctua NH-L9a-AM4

The NH-L9a-AM4 is the latest, AM4-specific revision of Noctua’s award-winning NH-L9a low-profile CPU cooler for AMD Ryzen-based HTPCs and Small Form Factor (SFF) systems. At a height of only 37mm, the NH-L9a is ideal for extremely slim cases and, due to its small footprint, it provides 100% RAM and PCIe compatibility as well as easy access to near-socket connectors even on tightly packed mini-ITX motherboards. The custom-designed SecuFirm2 mounting system for the AM4 socket makes installation child’s play and, thanks to the highly optimised NF-A9x14 92mm fan that supports fully automatic speed control via PWM, the NH-L9a-AM4 runs remarkably quietly. Topped off with Noctua’s renowned NT-H1 thermal compound, the NH-L9a-AM4 combines everything users have come to expect from Noctua’s larger coolers into a super-compact, premium-quality package for ITX and HTPC builds with Ryzen CPUs or APUs.

Noctua NH-L9a-AM4

37mm low profile

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.

Noctua NH-L9a-AM4

100% RAM compatibility

The NH-L9a-AM4 has a compact footprint that fully complies with the socket keep-out zones specified by AMD. This means that neither the heatsink nor the fan overhang the RAM, so the cooler provides easy access to the slots and is fully compatible with tall memory modules.

Noctua NH-L9a-AM4

100% compatibility with PCIe cards on mini-ITX

Some AMD-based mini-ITX motherboards have the PCIe slot located close to the CPU socket zone. While larger coolers that exceed this zone may block the PCIe slot, the compact-sized NH-L9a-AM4 provides full compatibility with PCIe cards.

Noctua NH-L9a-AM4

NF-A9x14 PWM premium fan

The highly optimised, award-winning NF-A9x14 premium fan features Noctua's proprietary AAO frame as well as sophisticated aerodynamic design measures. Supporting PWM for fully automatic speed control, the NF-A9x14 allows the NH-L9a-AM4 to stay remarkably quiet.

Noctua NH-L9a-AM4

Cooler Specification

Scope of delivery

  • NF-A9x14 PWM premium fan
  • Low-Noise Adaptor (L.N.A.)
  • NT-H1 high-grade thermal compound
  • SecuFirm2 AM4 mounting kit
  • Screws for 92x92x25mm fans
  • Noctua metal case-badge

Fan compatibility
92x92x14mm, 92x92x25mm


  • Height (without fan): 23 mm
  • Width (without fan): 114 mm
  • Depth (without fan): 92 mm
  • Height (with fan): 37 mm
  • Width (with fan): 95 mm
  • Depth (with fan): 95 mm
  • Weight (without fan): 345 g
  • Weight (with fan): 420 g

Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating.

Noctua NH-L9a-AM4

Dedicated special edition for AM4 (Ryzen)

Please note that being a dedicated special edition for AM4, the NH-L9a-AM4 comes with AM4 mounting hardware only. (For full socket compatibility, see table below).

Noctua NH-L9a-AM4
Noctua NH-L9a-AM4
Noctua NH-L9a-AM4
Noctua NH-L9a-AM4
LGA2066 X X X X
LGA2011-0 & LGA2011-3 X X X X
LGA115x (LGA1150, LGA1151, LGA1155, LGA1156) X X
LGA1366 X X X X
LGA775 X X X X
AM2(+), AM3(+), FM1, FM2 (+) X X X X
AM4 with NM-AM4-L9aL9i with NM-AM4-L9aL9i
TR4 & SP3 X X X X

Learn more about the Noctua Noctua NH-L9a-AM4 low-profile quiet cooler for AMD Ryzen CPUs and APUs

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 6 years
  • Limited Warranty period (labor): 6 years
  • Read full details
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Excellent ! (One egg was because it took 17 days to arrive) Deserves 4 eggs, maybe 5 8/5/2020 12:15:20 PM

Pros: This is a very well-made product.

Cons: Not quite as quiet as I expected.

Overall Review: Purchased for an Asrock A300w Mini build, with a Ryzen 3200g. The quality is obvious. The color is meh, but is only noticeable because it fills the entire side of the tiny case. Not exactly silent, but quiet. Probably gross overkill for cooling in this setup. Packaged in a foam-lined case like a fine watch: even the screws are set in foam cutouts. Even though Newegg said that it ships from Noctua, it arrived in a Newegg box with another order. The box had meandered around the country, was well crushed by the Postal Service (no damaged items), and took a full 17 days to arrive. Do not use Egg Saver, UPS to USPS, I beg you!

0 out of 2 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great cooler 6/16/2020 6:09:17 AM

Pros: Everything about Noctua is premium.

I purchased this for an ASRock deskmini build that I'm using for a steam machine/Minecraft server for my kids.
It fits and works perfectly.

The packaging felt premium.
The fan and heatsink have Excellent build quality and is nearly silent.

If your into it, even the case sticker that came with it is metal and feels much higher quality than any other products case stickers.

Keeps temps inside the small case very cool.

Overall Review: You have to install this from the back side of the board.

The best way I found to install it is to out the cooler upside down on a flat surface and set the board on top of it after putting thermal compound on the CPU or the cooler.

I tried to set it on the board and flip it over originally and it was sliding a bit and messed up the compound so I started over, silly on my part but I've never used a cooler that mounts from the rear like that.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Capable and silent 5/29/2020 2:59:40 PM

Pros: - Keeps my Ryzen 2600 cool
- Far from the loudest fan in the system
- Exceptional build quality

Cons: - Maybe price, but you get what you pay for.

Overall Review: Love this cooler. Crammed it into a Silverstone ML07B case and it does an excellent job keeping the Ryzen 2600 cool.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Noctua NH-L9a 5/10/2020 3:07:02 AM

Overall Review: Great product!

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
The Little Cooler that Cool'd 5/2/2020 2:45:27 PM

Pros: Can't hear it at all.
Keeps CPU cool under some decent load.

Cons: None.

Overall Review: Must have for SFF builds. Not everyone might like it, but the signature Noctua color makes me proud to have one.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
3/ 5
Was silent for a while 3/30/2020 11:24:10 AM

Pros: Worked great for a little over a year, quiet and cool.

Cons: After a little over a year, it started making this awful scratching sound. It's intermittent when it's laying flat, but constant when standing vertically.

Overall Review: Worked great until it didn't.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Noctua NH-L9a AM4 2/3/2020 7:38:11 AM

Pros: Very low profile, incredible build quality and packaging.

Cons: Chromax not available for AM4 model

Overall Review: Very nice cooler, doesn't interfere with RAM and is very quiet.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Perfect cooler for A300 DeskMini 1/28/2020 5:41:04 PM

Pros: Made an email + web surfing PC using the ASRock A300, Ryzen 2400G, and this Noctua heatsink/fan. Very Quiet and keeps everything nice and cool.

Cons: None

Overall Review: Would use again!

Did you find this review helpful?
ICON Loading...
Selected Items
  • Add to Wish List
Are you an E-Blast Insider?
Enter your email address to agree to receive promo codes from Newegg. You can unsubscribe at any time.
Subscribe Newegg e-Blast
Price Available at Checkout
Why can’t we show you details of this product?

Some manufacturers place restrictions on how details of their products may be communicated.

If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.