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The NH-L9a-AM4 chromax.black is an all-black version of Noctua’s award-winning NH-L9a-AM4 low-profile quiet CPU cooler for AMD Ryzen based HTPCs and Small Form Factor (SFF) builds. Thanks to the same proven heatsink design and NF-A9x14 PWM fan, it stays true to the NH-L9a-AM4’s successful formula of fusing a height of only 37mm with strong performance and excellent quietness of operation, as well as 100% RAM and PCIe compatibility. At the same time, the chromax.black version with its black fan and black coated heatsink combines these assets with a sleek stealth look. Topped off with the renowned SecuFirm2 low-profile mounting system for AMD AM4 and Noctua’s enthusiast-grade NT-H1 thermal compound, the NH-L9a-AM4 chromax.black is a premium choice for customers who seek an ultra-compact heatsink that looks just as great as it cools.
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.
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.
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.
Custom-designed SecuFirm2 mounting for AM4
The NH-L9a-AM4 comes with a custom-designed SecuFirm2 mounting system for the AM4 socket of AMD’s Ryzen platform. Allowing the heatsink to be fixed from the back of the motherboard, it makes installation easier than ever, all while maintaining the trusted SecuFirm2 quality.
Measurements
- Height (without fan): 23 mm
- Width (without fan): 114 mm
- Depth (without fan): 92 mm
- Height (with fan): 37 mm
- Width (with fan): 114 mm
- Depth (with fan): 92 mm
- Weight (without fan): 390 g
- Weight (with fan): 465 g
Materials
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Cooler Specifications
Please Note:
The NH-L9a-AM4 is a highly compact, quiet low-profile 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 or CPUs that create high heat loads.
Scope of delivery
- NF-A9x14 HS-PWM chromax.black premium fan
- NA-RC7 Low-Noise Adaptor (L.N.A)
- NT-H1 high-grade thermal compound
- Black SecuFirm2 AM4 mounting kit
- Black screws for 92x92x25mm fans
- Metal Case-Badge
chromax.black design
The NH-L9a-AM4 chromax.black is black from head to toe: Featuring a black coated heatsink, a black fan with black anti-vibration-pads, black fan screws and black mounting parts, it’s right at home in all-black builds and easy to integrate with other colour schemes.
nilson
Reviewed in the United States on April 24, 2025
Es muy bonito y silencioso, mantiene el pc fresco
Kunde
Reviewed in Germany on April 1, 2025
Top Qualität sehr leise und hält die Temperatur stabil
James
Reviewed in the United States on July 8, 2024
I recently purchased the Noctua NH-L9a-AM4 chromax.Black Low-Profile CPU Cooler from Amazon. The delivery was speedy and on time, as expected with Amazon Prime.Upon unboxing, I found the cooler to be smaller than I initially expected, especially compared to my previous NH-D15 chromax.black. However, the packaging was excellent, with Noctua including everything needed for installation, such as thermal paste and a backplate.Installation was straightforward and easy. As an IT professional, I found no issues with the process, which involved cleaning the CPU, applying thermal paste, and screwing down the cooler with the provided components.In terms of performance, the cooler works surprisingly well. While I haven't conducted stress tests, it keeps the CPU cool during normal tasks. Initially, the cooler was a bit noisier than expected, but after installing the appropriate drivers and completing startup processes, it became much quieter.The aesthetics of the cooler are impressive. The black design fits seamlessly with the rest of my system, and the low-profile form factor helps reduce the feeling of cramped space inside the case.Overall, I believe the Noctua NH-L9a-AM4 chromax.Black is worth the money and would recommend it to others. I am very satisfied with my purchase and plan to continue using Noctua coolers in my future builds.
NolanQ7
Reviewed in the United States on July 20, 2024
Overall, it's a solid investment, and I’m satisfied with my purchase. I’d recommend it as it is a reputable brand and very silent. Performance wise, I still found my Ryzen 7 5700x thermal throttling but that is to be expected from a cooler this size. Packaging was top-notch with a premium unboxing experience. I rate it a solid 4 out of 5 mainly because I do feel I am overpaying very slightly by going Noctua.
Luke
Reviewed in the United States on March 23, 2024
I was excited to try this low profile CPU cooler in one of my PC builds. This was going into an AMD Ryzen 5700X system. While the thermals of the CPU were within spec, I was a little disappointed with the noise level. I don't play many games, but the fan speed would spin up to full power when the system was idle. It was a noticeable noise level. There are always tradeoffs. If the case this is installed in needs low profile you cannot beat the Noctua brand and performance, but you will hear the fan.
Brandon miller
Reviewed in the United Kingdom on March 23, 2024
The Noctua NH-L9a-AM4 chromax.black has been a revelation for my compact PC build. Its low-profile design, standing at just 37mm, effortlessly fits into my Small Form Factor case without interfering with RAM or PCIe slots, which is a massive win for anyone dealing with limited space. The all-black aesthetic is sleek and perfectly complements my setup's color scheme, adding a touch of class without clashing with other components or RGB lighting.Performance-wise, the renowned NF-A9x14 fan lives up to its reputation. Thanks to the Low-Noise Adaptor and PWM control, my system runs cool under heavy loads without the annoying hum often associated with smaller coolers. It's whisper-quiet at idle, making it perfect for my HTPC setup where noise can be a deal-breaker.Installation was a breeze with the included NT-H1 thermal paste and SecuFirm2 mounting system. It's compatible with a wide range of AMD Ryzen CPUs and APUs, making it a versatile choice for various builds. The 6-year warranty from Noctua is the cherry on top, offering peace of mind that this cooler is built to last.For anyone looking to keep their AMD Ryzen system cool, quiet, and stylish in a compact package, the Noctua NH-L9a-AM4 chromax.black is an unbeatable choice.
JH
Reviewed in the United States on December 26, 2024
NOCTUA, the premier king in CPU fans. This thing is SUPER attractive. have it paired with a 5700g in a SFF ITX case and it was SUPER easy to install. Came with a tube of Noctua's thermal paste and everything needed. was eyeing this one for a while, its super quiet (without the low noise adapter) and its the only fan in this case.very happy with it. have installed many of these (noctua branded fans) on friends builds and looking to replace my NZXT AIO with a 120mm or NH15D Noctua for my main gaming rig.
Corey
Reviewed in the United States on April 18, 2024
I put this on a Ryzen 7 5800x3d in a fractal ridge ITX build. In game was ok but it seemed that heat would get trapped and slowly crawl until i had a constant 91c and still crawling up. Taking the side plate off reduced Temps immediately and I was disappointed I had to use it that way. I did some research and I got the Noctua na-fd1 fan duct kit which made sure the fan only pulled air from outside of the case and the highest temp I've had so far was 85c with average Temps in the mid 70's and no crawling. I'm very happy with Noctua. Now I can play my games without worry.
James W. Self
Reviewed in the United States on December 29, 2023
Very low profile. I had it installed on a 5600x in a fractual terra case and it kept it very cool. Install was very easy and didn't interfere with the ram sticks at all.I received a 5600x3d for Christmas and challenged this cooler on keeping it cool. I seen it go to 90 degrees c pretty quickly but I did expect the cooler to struggle with this cpu. I installed another noctua cooler that was compatible with the fractual terra and seen Temps that were more acceptable. I'm gonna keep this cooler as I will build another computer in another fractual terra for my wife.
Alex
Reviewed in the United States on November 7, 2023
Great cooler from noctua easy to install and setup. Like the small profile design only issue I have is I’m running a AMD Ryzen 5800x with a Zotac 3050 on a gigabyte a520i motherboard. Case is a itx cooler master nr200 16gb ram 3600mhz, 650 watt power supply. Only problem I’m having is the Cooler can’t keep the CPU under 70c at Home Screen. Under load running ready or not at load screen it got as high as 90c. Also did a test with left for dead 2 and got similar results. So if you are planning on using a 5800x with this cooler. I would not recommend using this one. I’m probably going to look for a beefy water cooler.
José Luis
Reviewed in Spain on May 12, 2022
Es silencioso y deja una estética en el pc para aquellos que nos gusta un pc limpio y sin tanto rgb
Sam
Reviewed in Australia on October 10, 2022
Can't go wrong with Noctua fans. It was delivered as shown in the listing. Came well packaged. Fan is silent, i hardly hear it playing games with a ryzen 5600x and 3060 (single fan) gpu.
simlev
Reviewed in Italy on November 23, 2020
L'ho acquistato solo perchè la mia CPU veniva sprovvista di dissipatore. Mi è spiaciuto spendere 50 euro in più ma mi sono un po' consolato in quanto questo prodotto trasuda solidità, eleganza e qualità. Ho dovuto cercare online un video su come applicare la pasta termica: secondo il metodo più consigliato basta una goccia al centro del processore.- Ventola silenziosa, perlomeno relativamente a quella del mio alimentatore.- Anche se avevo un po' di timori si è rivelata oltremodo facile da installare.- Include un tubetto di pasta termica sufficiente per diverse applicazioni: mi ha dato la tranquillità di poter sbagliare e rifare se necessario (non è stato necessario).- La siringa per applicare la pasta termica era un po' dura, oppure non ho capito io come funziona: fatto sta che ho dovuto svitare la punta nera e toglierla per poter far uscire qualcosa.
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