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Compact brown CPU cooler with 92mm fan and asymmetrical copper heatpipe tower

Noctua

Noctua NH-U9S CPU cooler 92mm fan 125mm height

SKU CH-39YB-1R6Y6 MPN NH-U9S

Compact 92mm fan CPU cooler with 125mm height for small-form-factor builds, broad Intel and AMD socket support, and PWM speed control down to 400 RPM

  • TypeFan & Heatsinks
  • Fan Size92mm
  • CPU Socket CompatibilityIntel LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151,
  • Bearing TypeSSO2
  • RPM2000 RPM (Standard), 1550 RPM (w/ L.N.A.), 400 RPM (PWM)
  • Air Flow46.44 CFM (Standard), 36.84 CFM (w/ U.L.N.A)

Model NH-U9S

  • NH-U9S
  • NH-U9 TR4-SP3

Les versions barrées existent, mais ne sont pas disponibles ici.

  • Compact 125 mm height fits HTPC and ITX cases
  • Asymmetrical layout clears RAM and PCIe slots on most boards
  • NF-A9 92 mm PWM fan runs at 22.8 dB(A) standard and 16.3 dB(A) with low-noise adaptor
  • Five heatpipes and nickel-plated copper base deliver strong cooling in a small footprint
  • SecuFirm2 mounting supports Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5, AM4

Compact single-tower cooler for small builds

The NH-U9S is a 125mm tall CPU air cooler built around a 92mm NF-A9 fan. Its 95x95mm footprint avoids overhanging RAM or PCIe slots on most current Intel and AMD motherboards. This makes it a practical choice for HTPC, ITX and other small form factor systems where space is limited.

SecuFirm2 mounting with offset option for AMD

Installation uses the included SecuFirm2 multi-socket system, which supports Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5 plus AM4. An offset mounting option is provided for AMD platforms to improve thermal efficiency. Builders who need a second fan for dual-fan mode must purchase an additional NF-A9 separately.

PWM fan scales from 400 to 2000 RPM under load

The NF-A9 PWM fan runs between 400 and 2000 RPM, delivering up to 46.44 CFM at 22.8 dB(A) in standard mode. With the supplied Low-Noise Adaptor the maximum drops to 1550 RPM, 36.84 CFM and 16.3 dB(A) for quieter sustained operation. The copper base with five heatpipes and nickel-plated aluminium fins transfers heat steadily during extended workloads.

Points forts

  • Compact 125 mm height fits HTPC and ITX cases
  • Asymmetrical layout clears RAM and PCIe slots on most boards
  • NF-A9 92 mm PWM fan runs at 22.8 dB(A) standard and 16.3 dB(A) with low-noise adaptor
  • Five heatpipes and nickel-plated copper base deliver strong cooling in a small footprint
  • SecuFirm2 mounting supports Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5, AM4

Caractéristiques

BrandNoctua
ModelNH-U9S
TypeFan & Heatsinks
Fan Size92mm
CPU Socket CompatibilityIntel LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA1150 and AMD AM5, AM4
Bearing TypeSSO2
RPM2000 RPM (Standard), 1550 RPM (w/ L.N.A.), 400 RPM (PWM)
Air Flow46.44 CFM (Standard), 36.84 CFM (w/ U.L.N.A)
Noise Level22.8 dB(A)/standard, 16.3 dB(A) (w/ U.L.N.A.)
Heatsink MaterialCopper ( Base and Heat-pipes), Alum.( cooling Fins ), Soldered Joints, Nickel Plated
Fan Mounting Types to HeatsinkHorizontal
Max CPU Cooler Height125 mm
Fan Dimensions92 x 92 x 25mm ( NF-A9 PWM)
Heatsink Dimensions125 x 95 x 95mm w/ fan
125 x 95 x 68mm w/o fan
Weight1.36 lbs. w/ fan
1.15 lbs. w/o fan
Poids d’expédition1.28 kg
Dimensions du colis188 × 171 × 165 mm

Questions sur cet article

How do I confirm the NF-A9 fan is running at the correct PWM speed after installation?

Check the motherboard BIOS or fan-control software; the fan should report between 400 RPM at minimum and 2000 RPM at full speed, with 1550 RPM when the low-noise adaptor is fitted.

What comes in the box and what must I purchase separately for a second fan?

The package includes the NH-U9S heatsink, one NF-A9 92 mm PWM fan, low-noise adaptor, NT-H1 thermal paste and SecuFirm2 mounting hardware for Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5/AM4; a second NF-A9 fan is sold separately.

Which cooler height version should I choose for a case limited to 125 mm clearance?

The NH-U9S measures 125 mm tall with the fan installed, matching the 125 mm limit exactly; there is no taller or shorter variant of this model.

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