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Noctua NH-L9a-AM4 CPU Cooler

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Noctua NH-L9a-AM4 CPU Cooler

Product code: NH-L9a-AM4

Availability: In stock

1,650 THB
  • 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



The NH-L9a-AM4 is the latest, AM4-specific revision of Noctua’s renowned 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.


low-profileram compatibilitypcie compatibilityscope of delivery

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.

Scope of delivery

 NF-A9x14 PWM premium fanLow-Noise Adaptor (L.N.A.)NT-H1 high-grade thermal compoundSecuFirm2 AM4 mounting kitScrews for 92x92x25mm fansNoctua metal case-badge




Dedicated special edition for AM4 (Ryzen)

Please note that being a dedicated special edition for AM4, the NH-L9a-AM4 comes with AM4 mounting hardware only. (For full socket compatibility, see table below)


Cooler Specification
Socket compatibility                                                    AMD AM4
Height (without fan)                                                     23 mm
Width (without fan)                                                      114 mm
Depth (without fan)                                                      92 mm
Weight (without fan)                                                    390 g
Height (with fan)                                                          37 mm
Width (with fan)                                                           114 mm
Depth (with fan)                                                           92 mm
Weight (with fan)                                                         465 g
Material                                                                        Copper (base and heat-pipes) aluminium (cooling fins), soldered joints & nickel plating
Max. TDP                                                                      see CPU compatibility list
Fan compatibility                                                        92x92x14mm, 92x92x25mm
Scope of delivery
  • NF-A9x14 PWM premium fan
  • Low-Noise Adaptor (L.N.A.)
  • NT-H1 high-grade thermal compound
  • SecuFirm2™ AM4 mounting kit
  • Screws for 92x92x25mm fans
  • Noctua metal case-badge
Warranty                                                                      6 Years
FAN Specification
Model                                                                           Noctua NF-A9x14 PWM
Bearing                                                                        SSO2
Max. rotational speed (+/- 10%)                                 2500 RPM
Max. rotational speed with L.N.A. (+/- 10%)             1800 RPM
Min. rotational speed (PWM, +/-20%)                        600 RPM
Max. airflow                                                                 57,5 m³/h
Max. airflow with L.N.A.                                             40,8 m³/h
Max. acoustical noise                                                23,6 dB(A)
Max. acoustical noise with L.N.A.                            14,8 dB(A)
Input power                                                                2,52 W
Voltage range                                                             12 V
MTTF                                                                           > 150.000 h
Brands Noctua

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