Best PC Case Fans 2021

When choosing a case fan for your PC, it is important to consider a multitude of factors, including size, speed, and noise. If you are interested in educating yourself about case fans before making a purchase, check out our article on How to Choose The Right Case Fans.

We will be supplying you with our top picks for case fans within the following categories:

  • Our pick for Best Case Fan 2021.
  • Best 120mm fan
  • Best 140mm fan
  • Best silent case fan

Our Top Pick 2021

My top pick for case fans in 2021 has to be the NZXT AER RGB 2. A perfect balance between performance, noise, and aesthetics, the NZXT AER RGB 2 comes in both 120mm and 140mm sizes.

Being a more expensive option, this case fan provides more performance and flexibility than any other case fan I have personally experienced. Using NZXT’s CAM software, you can easily link up any NZXT RGB product together to seamlessly create a unified light setup in your PC.

pc and case fans


Our top case fan pick of 2021. Provides great air cooling and a wonderful aesthetic!

Beyond the aesthetic, the fan provides a static pressure airflow and uses the highest quality fluid dynamic bearings. These bearings run quieter and allow for a much longer lifespan than other bearing types. The only drawback here is the premium price it comes at. This fan is also our choice for the best RGB case fan 2021. 

Best 120mm Case Fans

Noctua has consistently delivered high-quality air-cooling products and this one is no different. With award-winning performance, this 120mm fan comes in sleek grey color as opposed to Noctua’s typical clay/brown color palette.

pc case fan

Noctua NF-P12 redux-1700 PWM

Our pick for best 120mm case fan. Provides fantastic cooling for a 120mm fan with a quiet 25.1dBA

Sitting at a quiet 25.1 dB with a fast max RPM of 1700. This fan is the best choice for anyone looking for a 120mm case fan based on performance and price.

Best 140mm Case Fans

The Noctua NF-A14 is an award-winning premium quiet fan. The fan includes an advanced acoustic optimisation frame that allows for even quieter cooling performance. This fan sits at a quiet 24.6 dB and spins quickly at with a max 1500RPM.

noctua pc case fan

Noctua NF-A14 PWM

Our pick for best 140mm case fan. Provides great cooling with award winning heatsink design and technology.

There is a similar fan from Noctua that comes in a Grey version, which in my opinion, looks much better than the brown version. This grey version, however, is a little bit louder.

pc case fan

Noctua NF-P14s redux

Provides great cooling with award-winning heatsink design and technology. In a sleek grey finish.

Best Quiet Case Fans

If you are specifically looking for an ultra-quiet case fan, look no further, as the Cooler Master Silencio FP120 offers the best in noise reduction.

cooler master case fan

Cooler Master Silencio FP120

Our pick for the best quiet case fan. Quieter than a whisper, I doubt you will even hear this fan running on your PC.

With an inaudible 14 dBA at max RPM, it is highly unlikely that you will hear any noises coming from this fan. The fan also offers 1400RPM which is sure to keep your PC internals cool.


In conclusion, there are many variants of case fans and the one you choose should be able to run effectively, quietly and last you a long time. The fan you ultimately end up purchasing should accurately represent your personal preferences.


Our top recommendation for PC case fans is the NZXT AER RGB 2. This case fan provides stunning RGB aesthetics all the while pushing air efficiently and quietly. Using NZXT’s CAM software, you can quickly adjust fan speeds, noise levels and choose from many different awesome RGB options. However, this fan is the most expensive of the bunch as it contains the most features and is high quality. The picture below is from my own personal computer using NZXT’s AER RGB 2’s and trust me when I tell you, it looks even better in person! The CAM software used for controlling these fans is also extremely intuitive and easy to use and customize.

pc and case fans

Noctua NF-P12 redux-1700 PWM

For 120mm case fans, we recommend the Noctua NF-P12 redux-1700 PWM (120mm, Grey). This case fan provides high-performance cooling all the while keeping quiet and at a competitively low price point.

Noctua NF-A14

Our choice for best 140mm case fan is the Noctua NF-A14. Noctua consistently provides high-quality air-cooling products, and they do not fail to deliver with this fan. It runs very quietly and provides optimal an optimal cooling solution. Place it in your PC as an exhaust fan, intake fan or a fan for your water-cooling radiator.

Cooler Master Silencio FP120

Finally, the best silent case fan 2021 is the Cooler Master Silencio FP120. I have yet to deal with a case fan that runs as quietly as this one. Producing a very low noise level of 14dB, this case fan is perfect for anyone looking for a stealthily quiet PC.

If you are still unsure about what case fan is best for you we recently published an article on How to Choose The Right Case Fans.