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.
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Notes and warnings
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 CPU compatibility listand TDP guidelines to find out whether the NH-L9a-AM4 is recommended for your CPU/APU.
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AMD AM4
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Height (without fan)
23 mm
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Width (without fan)
114 mm
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Depth (without fan)
92 mm
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Weight (without fan)
390 g
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Height (with fan)
37 mm
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Width (with fan)
114 mm
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Depth (with fan)
92 mm
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Weight (with fan)
465 g
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Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
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Max. TDP
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Fan compatibility
92x92x14mm, 92x92x25mm
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Scope of delivery
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Model
Noctua NF-A9x14 PWM
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Bearing
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Max. rotational speed (+/- 10%)
2500 RPM
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Max. rotational speed with L.N.A. (+/- 10%)
1800 RPM
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Min. rotational speed (PWM, +/-20%)
600 RPM
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57,5 m³/h
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Max. acoustical noise
23,6 dB(A)
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Max. acoustical noise with L.N.A.
14,8 dB(A)
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Input power
2,52 W
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Voltage range
12 V
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MTTF
> 150.000 h
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