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Slim single-tower CPU cooler with brown 140mm fan and copper heatpipes

Noctua

Noctua NH-U14S CPU cooler 140mm fan

SKU CH-460K-GTESW MPN NH-U14S

Slim 140 mm single-tower cooler with six heatpipes and NF-A15 PWM fan for quiet operation and full RAM clearance on Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5, AM4 sockets

  • TypeFan & Heatsinks
  • Fan Size140mm
  • CPU Socket CompatibilityIntel LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151,
  • Bearing TypeSSO2-Bearing (Self-Stabilising Oil-Presure Bearing)
  • RPM1500 RPM (standard), 1200 RPM (w/ L.N.A.), 300 RPM (PWM)
  • Air Flow82.52 CFM (standard), 67.98 CFM (w/ L.N.A)
  • Award-winning slim 140mm single-tower design delivers outstanding cooling performance with superb quietness
  • NF-A15 140mm PWM fan with Low-Noise Adaptor enables automatic speed control and ultra-quiet operation at 19.2 dBA
  • 52mm slim profile ensures full RAM compatibility on AM5 and AM4 without overhanging slots
  • SecuFirm2 mounting system supports Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5, AM4 with offset option
  • Six heatpipe copper base and nickel-plated aluminium fins provide premium thermal conductivity for Ryzen 9950X, 9900X, 9700X.

Single-Tower 140 mm Air Cooler

The NH-U14S is a premium single-tower CPU cooler built around a 140 mm NF-A15 fan. It targets enthusiasts who want strong thermal performance with low noise and full RAM clearance on mainstream desktop sockets.

165 mm Height Limit

At 165 mm tall the cooler fits most mid-tower cases, but it will not suit compact chassis with tighter CPU-cooler clearances. The 52 mm slim fin stack keeps the first RAM slot free on AM5, AM4 and LGA2011/LGA2066 platforms.

Six Heatpipes and 1500 RPM Ceiling

Six copper heatpipes and a 1500 RPM PWM fan deliver 82.52 CFM airflow for high-end Intel Core Ultra and AMD Ryzen 9950X-class processors. The 300 RPM minimum and 19.2 dBA low-noise mode keep acoustics minimal at idle, while the 1200 RPM low-noise adaptor caps output at 67.98 CFM for quieter sustained loads.

Highlights

  • Award-winning slim 140mm single-tower design delivers outstanding cooling performance with superb quietness
  • NF-A15 140mm PWM fan with Low-Noise Adaptor enables automatic speed control and ultra-quiet operation at 19.2 dBA
  • 52mm slim profile ensures full RAM compatibility on AM5 and AM4 without overhanging slots
  • SecuFirm2 mounting system supports Intel LGA1851, LGA1700, LGA1200, LGA115x and AMD AM5, AM4 with offset option
  • Six heatpipe copper base and nickel-plated aluminium fins provide premium thermal conductivity for Ryzen 9950X, 9900X, 9700X.

Specifications

BrandNoctua
ModelNH-U14S
TypeFan & Heatsinks
Fan Size140mm
CPU Socket CompatibilityIntel LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA1150 and AMD AM5, AM4
Bearing TypeSSO2-Bearing (Self-Stabilising Oil-Presure Bearing)
RPM1500 RPM (standard), 1200 RPM (w/ L.N.A.), 300 RPM (PWM)
Air Flow82.52 CFM (standard), 67.98 CFM (w/ L.N.A)
Noise Level24.6 dBA (standard), 19.2 dBA (w/ L.N.A.)
Heatsink MaterialCopper (Base and Heat-pipes), Alum. (cooling Fins), Soldered Joints, Nickel Plated.
Fan Mounting Types to HeatsinkHorizontal
Max CPU Cooler Height165 mm
Fan Dimensions140.00 x 140.00 x 25.00 mm
Weight935g
FeaturesAward-winning NH-U series.
Full RAM compatibility on LGA20xx.
Reasonable size for better overall compatibility.
NF-A15 140mm PWM Fan.
PWM support and Low-Noise Adaptor.
Anti-vibration pads and fan-clips for second NF-A15 (optional).
SecuFirm2 mounting system.
Compatibility with past and future sockets.
NT-H1 thermal compound.
Shipping weight1.72 kg
Package size221 × 201 × 155 mm

Questions about this item

Which NH-U14S version should I pick for a compact case with tall RAM?

The single NH-U14S model has a 52 mm slim heatsink that does not overhang RAM slots on AM5 and AM4 boards, and its 165 mm height fits most mid-tower cases.

What does the 24.6 dBA noise rating mean when the cooler is running inside my PC?

At the standard 1500 RPM fan speed the cooler produces 24.6 dBA; fitting the supplied Low-Noise Adaptor drops speed to 1200 RPM and noise to 19.2 dBA while still moving 67.98 CFM.

How does the PWM fan interface control speeds in practice?

The NF-A15 140 mm fan uses 4-pin PWM, allowing the motherboard to vary speed between 300 RPM and 1500 RPM automatically based on CPU temperature.

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