Fan Noctua NF-A14 ULN 140 mm computer case fan, 140×25 mm, 600–800 RPM, 79.8 m³/h, 11.9 dB

The Noctua NF-A14 ULN is a premium 140 mm computer cooling fan with a square frame that follows Noctua's AAO (Advanced Acoustic Optimisation) standard. With 140 mm mounting holes (124.5 mm spacing) and dimensions of 140 x 140 x 25 mm, it is suitable for use on watercooling radiators or as an upgrade for case fans. The ULN model runs at very low speeds (800/650 RPM) to provide ultra-low-noise operation while delivering an airflow of up to 79.8 m³/h and a maximum static pressure of 0.69 mmH2O at 12 V.

Advantages

The NF-A14 ULN combines refined aerodynamic measures such as Flow Acceleration Channels with a square frame design to improve quiet cooling performance. Its ultra-low noise (ULN) speed settings and reference-class SSO2 bearing ensure smooth, reliable operation. The fan's construction and Noctua's quality control make it suitable for users who require near-silent performance and long-term reliability.

Suitable for

• Cooling watercooling radiators (140 mm)
• Replacing or upgrading 140 mm case fans
• Systems where very low noise is required (home theater PCs, recording setups)

Key specifications

• Model: Noctua NF-A14 ULN (MPN: NF-A14 ULN)
• Fan diameter: 140 mm
• Dimensions: 140 x 140 x 25 mm
• Speed: 800 / 650 RPM (ULN settings)
• Airflow: up to 79.8 m³/h
• Maximum static pressure: 0.69 mmH2O
• Voltage: 12 V
• Bearing: SSO2
• Frame: square, 140 mm mounting holes (124.5 mm spacing)
• EAN: 4716123314820

How to use

Install the NF-A14 ULN using the standard 140 mm mounting holes (124.5 mm spacing) on your radiator or case. Connect the fan to a 12 V fan header on the motherboard or to an appropriate fan controller. If your setup supports multiple speed profiles, select the ULN setting for ultra-low-noise operation; otherwise allow the fan controller or motherboard to regulate the RPM. Ensure the airflow direction matches your cooling layout and secure the fan to prevent vibration.

Recommendations

For best results on radiators, use the fan in push or pull configuration per your radiator manual and maintain regular dust cleaning. Use ULN speed settings where noise sensitivity is a priority; for higher cooling demand, consider a higher-speed variant of the NF-A14 series.