Noctua NH-L9a-AM4 low-profile quiet cooler for AMD Ryzen CPUs and APUs
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- 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 SecuFirm2TM mounting system for the AM4 socket of AMD’s Ryzen CPUs and APUs
- Trusted Noctua quality backed up with 6-year manufacturer's warranty
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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.
Caution: 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 is only recommended for CPUs/APUs with up to 95W TDP (Thermal Design Power). Please consult our TDP guidelines to find out whether the NH-L9a-AM4 is recommended for your CPU/APU.
New revision for Ryzen’s AM4 socket
Since the original NH-L9a for AM2(+), AM3(+), FM1 and FM2(+) has received more than 50 awards and recommendations from international hardware websites and magazines, the new AM4 revision builds on the same proven heatsink design to provide excellent low-profile cooling performance for Ryzen CPUs and APUs.
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.
Seller Warranty Description6 years manufacturer warranty
Top customer reviews
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This is in my fractal R5 which has no window so nobody can see it anyways.
I run a non-overclocked 1700x it cools just fine.
In other words if you want a silent cooler for a HTPC this along with it's low noise adapter are perfect and should fit inside just about any HTPC case. It has plenty of clearance in my silverstone 6b mini-ITX case, installation was a breeze, nothing out of the ordinary.
Also, I really wish I could have been able to rotate the heatsink so the fins directed the hot air flow away from my ram.
I love Noctua products and will be upgrading to NH-L12S once I take some clearance measurements in my case.
Most recent customer reviews
My only complaint is that installation is a pain, as the heat sink blocks access to the...Read more
It works great and the fan is quiet.
(the crackling in the video is my phone not the fan)