Noctua NH-L9a-AM4 chromax.Black, Low-Profile CPU Cooler for AMD AM4 (Black)

(417 Reviews)

Price
$32.97

Quantity
(10000 available )

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104 Ratings
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Reviews
  • john tantay

    > 3 day

    Awesome little cooler for my ryzen 2600 cpu

  • Trevor Johnson

    > 3 day

    This thing is incredible. Keeps my 3600xt around 30C at idle and around 65C while gaming at ultra settings.

  • Peter Colesworthy

    > 3 day

    Awesome product, looks great and is silent in my 250D.

  • SKAN

    > 3 day

    No other low profile cooler has better temps than Noctua coolers. This is my second one on a different build and its always 30-35c at idle with probably the smallest case Ive ever housed a PC in.

  • Miguel Gutierrez

    > 3 day

    Like how low it sits on the motherboard

  • Tyler Rouse

    > 3 day

    Only con was the mounting. Trying to sandwich the backplate to the cooler for an even application to the cpu was the biggest pain, but not overly frustrating. Temps are good, not groundbreaking, but acceptable for a low profile cooler. Adjust the curve in your bios to an acceptable noise level and keep it there. Overall I’m very happy.

  • CollegeStudent

    > 3 day

    So far so good. Got a sff case and the temps are still pretty low.

  • Jake

    08-06-2025

    This seemed quite difficult to install with only one person. Required to screw down the heatsink on while screwing in the bracket on the backside of the motherboard. It does work well and cool well in my case though, it is extremely low profile.

  • Tommy Oliver

    Greater than one week

    Stock Wraith Stealth cooler for my 2600 was making a whining noise so I had to swap it out. Heard a lot of positive talk about Noctua so I decided to give em a go now that theyre making black fans. Threw this thing in my system and I dont even realize its there. Thing is DEAD SILENT, and cools better than the stock Stealth. Between this and the dual 120mm Noctuas I also mounted in the case itself, the loudest thing now is the power supply. Would throw a Noctua fan in there too if I could. These things command a bit of a price premium, but youre getting exactly what youre paying for: computing tranquility.

  • ronnie d baldwin

    Greater than one week

    would buy again

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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.

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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.

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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
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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.

NH-L9i table NH-L9i table NH-L9a-AM4 Table NH-L9i-17xx chromax.black NH-L9i-17xx chromax.black NH-L9a-AM4 chromax.black table
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

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