Noctua
Noctua NF-A14 ULN 140mm Case Fan
Best 140mm fan for users prioritizing a near-silent computing environment.
The Noctua NF-A14 ULN is a premium 140mm case fan designed for ultra-low-noise applications. Its square shape and 140mm mounting holes make it ideal for watercooling radiators or as an upgrade for existing 140mm case fans. The ULN (Ultra-Low Noise) version features reduced speeds of 800/650rpm, ensuring near-silent operation for users who prioritize a quiet computing environment. This fan is built with high-quality materials for durability and reliable performance. The Noctua NF-A14 ULN is a 140mm case fan designed for ultra-low noise operation. It features an advanced SSO2 bearing for smooth and quiet performance, ensuring efficient cooling without adding significant noise to your system. This fan is ideal for users who prioritize a quiet computing environment while maintaining optimal temperatures. Its robust construction and reliable performance make it a great addition to any PC build where silence is a key consideration. The Noctua NF-A14 ULN is a premium 140mm fan designed for ultra-low-noise applications. Featuring a square frame for optimal radiator and case fan use, it incorporates Noctua's AAO standard with Flow Acceleration Channels for improved efficiency and reduced noise. This ULN version offers exceptionally slow speeds for near-silent operation, making it ideal for noise-sensitive users. Its advanced SSO2 bearing and durable brass bearing shell ensure long-term reliability and smooth performance, backed by a 6-year warranty.
$24.95
Owner Satisfaction
4.7
/ 5
Category Rank
100
/ 3595
#100 in Computer System Cooling Parts
Price vs Category Average
-83%
Below average
Fan Diameter
140
/ mm
Who it's for
- Silent PC builders and users in quiet work environments
- Long-term owners prioritizing reliability and peace of mind
- System builders needing versatile installation and cable management options
Who should skip it
- Performance enthusiasts requiring high airflow for intensive cooling tasks
- Aesthetic-focused builders coordinating color-matched or RGB-heavy PC themes
- Budget-conscious shoppers looking for cost-effective cooling solutions
Performance breakdown
Acoustic Performance
Virtually inaudible operation makes this the gold standard for silent builds.
Build Longevity
SSO2 bearing technology and a six-year warranty ensure exceptional long-term reliability.
Airflow Efficiency
Prioritizes silence over raw cooling power, limiting its high-performance thermal capacity.
Vibration Control
Integrated anti-vibration pads effectively decouple the fan from your chassis.
Installation Versatility
Standard 140mm square frame fits seamlessly into most cases and radiators.
Static Pressure
Low rotational speeds result in modest pressure for dense radiator stacks.
Key Specs
Fan Diameter
140 mm
Material
Plastic
Bearing Type
Fluid Dynamic Bearing
Power Connection
3-Pin
Voltage
12 V
Dimensions
25 mm (Item Height)
Compatible Brand
Universal
Type
Case Fan
Features
- Ultra-low noise operation for a quiet computing experience
- SSO2 bearing technology for enhanced durability and smooth performance
- Designed for optimal airflow in PC cases
- Environmentally friendly with RoHS and WEEE certifications
- Reliable Noctua quality for long-term use
- Square 140mm frame ideal for radiators and case fan upgrades
- AAO frame with Flow Acceleration Channels for enhanced airflow and reduced noise
- Stepped Inlet Design and Inner Surface Microstructures for improved acoustic performance
- Integrated anti-vibration pads minimize operational noise
- SSO2 bearing for superior stability, precision, and durability
- Metal bearing shell for high manufacturing precision and long-term stability
- Smooth Commutation Drive 2 for quiet operation
- Includes Low-Noise Adapter (L.N.A.) for flexible speed control
- Ultra-low noise operation for sensitive users
- Reduced RPM settings for near-silent performance
- Premium build quality for durability
- Designed for highly noise-sensitive environments
What customers say
This fan earns exceptional praise primarily for its unparalleled acoustic performance. Users consistently report the unit is virtually inaudible, making it the top choice for noise sensitive builds like studios or silent desktops. Beyond the silence, the build quality is universally lauded, reflecting premium materials and a robust bearing system that promises long term reliability. While airflow is modest due to the focus on low noise operation, purchasers accept this trade off for the extreme quiet. Although the price is premium, the consensus is that the unique level of silence achieved fully justifies the investment, resulting in very high satisfaction within its specialized market.
Know before you buy
Yes, the NF-A14 ULN features a square frame design that makes it an excellent choice for mounting on 140mm radiators where a tight seal is required for optimal airflow.
The L.N.A. reduces the fan speed from 800 RPM to 650 RPM. This lowers the noise level to a near-silent 9.1 dB(A), though it will also result in a slight reduction in airflow and static pressure.
No, this model uses a 3-pin connector. It is designed for users who prefer a fixed, ultra-low speed for consistent, silent operation rather than dynamic speed adjustments based on system temperatures.
Yes, the fan follows the standard 140x140x25mm dimensions with standard 140mm mounting holes, making it compatible with most PC cases that support 140mm fans.
The ULN (Ultra-Low Noise) designation indicates that this fan is specifically engineered for maximum silence. It operates at significantly lower RPMs than standard fans, making it ideal for noise-sensitive environments where absolute quiet is the priority.
The NF-A14 ULN is built with Noctua's SSO2 bearing technology and a metal bearing shell for high precision and stability. It is backed by a 6-year manufacturer warranty, reflecting its long-term durability.
Still have a question?
Ask Hayley anything about this product before you decide.