Corsair iCUE LINK LX120 RGB 120mm PWM Fan Single Pack vs Noctua NF-A4x20 PWM
Updated August 2026 — The Corsair iCUE LINK LX120 RGB excels in aesthetics and cooling performance, while the Noctua NF-A4x20 PWM is superior in quiet operation and reliability. Choose based on your priorities.
The Corsair iCUE LINK LX120 RGB excels in aesthetics and cooling performance, while the Noctua NF-A4x20 PWM is superior in quiet operation and reliability. Choose based on your priorities.
Why Corsair iCUE LINK LX120 RGB 120mm PWM Fan Single Pack is better
Cooling Performance
Corsair fan delivers 69.9 CFM airflow at 2,400 RPM.
Aesthetics
Corsair features stunning RGB lighting with 18 LEDs.
Innovative Technology
Corsair uses AirGuide Technology for focused cooling.
Why Noctua NF-A4x20 PWM is better
Noise Levels
Noctua operates at a maximum of 14.9 dB(A), quieter than Corsair.
Price
Noctua is more budget-friendly at £18.40.
Size Compatibility
Noctua's compact size is ideal for tight spaces.
Overall score
Specifications
| Spec | Corsair iCUE LINK LX120 RGB 120mm PWM Fan Single Pack | Noctua NF-A4x20 PWM |
|---|---|---|
| Brand | Corsair | Noctua |
| Current Price | £27.59 | £18.40 |
| Max Speed | 2400 RPM | 5000 RPM |
| Airflow | 69.9 CFM | 14.9 CFM |
| Noise Level | 25 dB(A) | 14.9 dB(A) |
Dimension comparison
Price Comparison
The Corsair iCUE LINK LX120 RGB is priced at £27.59, while the Noctua NF-A4x20 PWM is more budget-friendly at £18.40. The price difference of £9.19 reflects not only the distinct features of each fan but also the target market they cater to. Corsair's offering is designed for a more visually appealing setup, prominently featuring RGB lighting, which might justify its higher price for gamers and PC enthusiasts. In contrast, Noctua's fan is engineered for quiet performance and reliability, appealing to users who prioritise efficiency over aesthetics.
Design and Aesthetics
When it comes to design, the Corsair iCUE LINK LX120 RGB stands out with its dual light loops and 18 LEDs, providing stunning customisable RGB lighting. This feature allows users to synchronise lighting effects with other iCUE RGB devices, enhancing the overall visual appeal of their PC builds. Conversely, the Noctua NF-A4x20 PWM has a more utilitarian design, focusing on functionality. Its compact size of 40x40x20 mm makes it suitable for tight spaces, such as 1U servers or network equipment, rather than for aesthetic considerations. Thus, while the Corsair fan is aimed at those wanting a flashy setup, Noctua caters to users who value performance in a more subdued design.
Performance and Efficiency
Performance-wise, the Corsair iCUE LINK LX120 RGB operates at a maximum speed of 2,400 RPM, delivering an impressive airflow of 69.9 CFM. This capability makes it suitable for systems requiring substantial cooling, particularly when mounted on radiators. In comparison, the Noctua NF-A4x20 PWM boasts a maximum speed of 5,000 RPM, although it has a lower airflow due to its smaller size. It is designed for quiet operation, with noise levels reaching a maximum of just 14.9 dB(A), making it ideal for environments where silence is paramount. Therefore, the Corsair fan excels in cooling efficiency, while the Noctua fan prioritises quiet performance, appealing to different user needs.
Noise Levels
Noise levels are a critical factor in fan performance, and here the Noctua NF-A4x20 PWM shines with its maximum noise output of merely 14.9 dB(A). This whisper-quiet operation is attributed to its advanced acoustic optimisation design. On the other hand, the Corsair iCUE LINK LX120 RGB employs a Magnetic Dome bearing to minimise noise, but specific dB levels are not provided. Given that it can reach higher RPM speeds, it may generate more noise under load compared to the Noctua fan. Thus, if a quiet computing environment is essential, the Noctua fan would be the preferable choice.
Installation and Compatibility
Installation processes differ between the two fans. The Corsair iCUE LINK LX120 RGB features iCUE LINK bridge connectors, allowing for easy connection between fans and the iCUE LINK System Hub with a single cable. This design simplifies cable management and enhances overall system aesthetics. Conversely, the Noctua NF-A4x20 PWM comes with an array of accessories, including anti-vibration mounts, fan screws, and a y-cable for connecting to proprietary headers. Its versatility makes it suitable for a variety of applications beyond standard PC builds, such as network and storage equipment. Therefore, while Corsair streamlines fan integration, Noctua offers extensive compatibility options.
Target Audience
The target audience for each fan differs significantly. The Corsair iCUE LINK LX120 RGB is aimed at gamers and PC builders who appreciate RGB lighting and effective cooling performance. Its features cater to those looking to enhance the aesthetics of their builds while maintaining high airflow. In contrast, the Noctua NF-A4x20 PWM targets users who require a reliable, quiet solution for specific applications, such as servers or network devices. Its focus on silent operation and longevity appeals to professionals and enthusiasts in need of dependable performance over visual flair.
Cooling Technology
Corsair employs its proprietary AirGuide Technology in the LX120 RGB, which utilises anti-vortex vanes to direct airflow effectively towards the hottest components, ensuring concentrated cooling. This innovative feature enhances the fan's cooling efficiency, particularly in demanding environments. The Noctua NF-A4x20 PWM, while lacking flashy technology, utilises its award-winning A-series design with Flow Acceleration Channels. This setup optimises airflow while minimising turbulence and noise. Although both fans utilise advanced cooling technologies, Corsair's approach is designed for maximum visual and cooling impact, while Noctua prioritises silent efficiency.
Which should you buy?
Choosing between the Corsair iCUE LINK LX120 RGB and the Noctua NF-A4x20 PWM ultimately depends on your specific needs. If you're looking for a fan that combines effective cooling with stunning RGB lighting for a visually appealing build, the Corsair fan is the better choice at £27.59. However, if you prioritise quiet performance and reliability, especially for use in compact or professional environments, the Noctua fan at £18.40 is hard to beat. Each fan serves its purpose well, catering to different segments of the market.
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