Noctua NH-L9a-AM4 chromax.Black, Low-Profile CPU Cooler for AMD AM4 (Black)
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Agtstack
> 3 dayThrew this in my asrock x300 to cool my ryzen pro 4750g and its quiet and handles temps very well even when you adjust fan speed. My dvr/emulator station loves this in it
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Apes_Vs_Grapes
> 3 dayI got this mounted and started benchmarking but exchanged it for a low profile AIO.
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Devron A.
> 3 dayAfter delivery I had find out that I ordered wrong but the name of this item for AMD and INTEL processor are very similar. All information, text, pictures, prices are equally the same. While order I lost focus and had paid for AMD while I wished to order for INTEL. I would advise seller to make more differences in product pages so that buyers would see better. I am not expert in parts to notice that. Unfortunately I will have to return this product and have to buy offline.
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Aeryn
Greater than one weekAbsolutely amazing CPU cooler; exceeded my expectations.
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siteng yang
> 3 dayIf ur building a itx machine, get it.
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Kman
Greater than one weekRunning this cooler on an ultra mini case and keeps the 5600x around 50 to 60c. This cooler is absolutely perfect for low power processors
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Rankmantella
Greater than one weekThis is my first noctua product and I’m very impressed with build quality and packaging. Used this on b550i rig strix mobo in a nr200p case
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Electrosoft
Greater than one weekI purchased this initially for a 3600x which I exchanged for a 5600x for a SFF build (which turned into a micro ATX build).
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Josh Ayala
> 3 daySeriously: Best. Tiny. CPU. Cooler. Ever. Gives you the most bang for your buck, its so quiet (I could barely tell my system was running on load), and the new Chromax.black looks so good. Only thing that was awkward about it was installing the back plate under the board and having to screw in from underneath instead of on top like most of the others, but all-in-all, really cant complain after seeing these thermals. Cant get this kind of performance at this size from anyone else. Also, the box they sent it in was adorable, not that it matters for most people, but you can really tell they care about their consumer base.
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Miguel. p
10-06-2025Really good for sff build it’s keeps the temps ok on my no GPU build - 40 on standard use 55-60 while gaming Valorant and simple games. Very sleek very premium quality feel.
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.
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37mm low profileDue 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 compatibilityThe 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-ITXSome 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 AM4The 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.
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| NH-L9i | NH-L9a-AM4 | NH-L9a-AM5 | NH-L9i chromax.black | NH-L9a-AM4 chromax.black | NH-L9a-AM5 chromax.black | |
| LGA2066, LGA2011-0 & LGA2011-3 | X | X | X | X | X | X |
| LGA1700 | X | X | X | X | X | X |
| LGA1200, LGA115x (LGA1150, LGA1151, LGA1155, LGA1156) | ✓ | X | X | ✓ | X | X |
| LGA775 & LGA1366 | X | X | X | X | X | X |
| Xeon LGA2011 Narrow ILM / Xeon LGA1366 & LGA1356 | X | X | X | X | X | X |
| Xeon LGA3647 | X | X | X | X | X | X |
| Xeon LGA4189 | X | X | X | X | X | X |
| AM4 | with NM-AM4-L9aL9i | ✓ | with NM-AM4-L9aL9i | with NM-AM4-L9aL9i | ✓ | with NM-AM4-L9aL9i |
| AM5 | with NM-AM5-L9aL9i | with NM-AM5-L9aL9i | ✓ | with NM-AM5-L9aL9i | with NM-AM5-L9aL9i | ✓ |
| sTRx4, sWRX8, TR4, SP3 | X | X | X | X | X | X |