2 Best 140mm Case Fans to Buy in 2022 [Buying Guide]


CPU throttling and frequent hang of the system is one of the common issues that most people face. This can be frustrating as it impacts the performance of the system. Cooling fans can help you to dissipate heat from the system. This helps your system to perform optimally at all times. There are a lot of fan sizes available in the market but these days, 140mm is most commonly used. Out of all the models available, choosing the one needs a lot of research and time. So, we have researched for you and have come up with the best 140mm case fans that are worth your money.

Buying Guide for The Best 140mm Case Fans

Now that the technology is increasing, the components of the computer are also becoming advanced and high-end. This leads to increased power consumption and speed. As a result, this increases the heat generated in your system. When the heat increases above the threshold, the motherboard will start encountering issues and the performance of the whole system will decline. It simply implies that your system is not running to its full potential. Therefore, a cooling fan needs to be installed on your system to dissipate that generated heat so your system can work smoothly. Here, we have listed all the things that you will have to keep in mind while choosing the best 140mm case fan.

Size of the Fan:

So, these fans are available in different sizes. The most used sizes are 120, 80, 200, and 140 mm fans. Nowadays, 140mm fans are in demand because they have big blades and circulate much more air at lower than usual speeds. Moreover, they do not make as much noise as others.

Type of Power Connection:

Another thing that you will have to keep in mind is the type of power connection. One of the common methods is to use a 4-pin connector. Moreover, the 3-pin one will also work fine but it will use three pins only.

Fan Speed:

You will have to measure the speed of the fan in revolution per minute. The speed of the fan determines its performance of the fan. Generally, if you use a large fan, they run at low RPM and do not make any noise.

Type of Bearing:

Mostly, there are only 3 types of bearings used. They are hydrodynamic, ball, and Sleeve. When it comes to the Hydrodynamic bearing, it is self-lubricating and is the most durable one. Also, when it comes to ball bearing. It is louder and will last longer.

Air Flow:

The next thing that you will have to look for is the speed of your fan. It is calculated in the cubic feet per minute and it implies how much air the fan pushes per minute.

Best 140mm Case Fan

 So, now you know all the features that you need to look for in the best 140mm case fan, we have listed the best ones available in the market. Read the detailed descriptions and choose the one which suits all your requirements.

Corsair LL Series LL140

Corsair LL Series LL140

This Corsair LL Series LL140 fan is one of the dual light loop series. This fan offers you the best RGB LED controls. Almost all the sixteen LEDs are present around the edges of the fan which gives this fan a great look. Moreover, there are also rubber pads present so that there is no vibration against the cooler or chassis. This is one of the most powerful fans available which can reach 1300 RPM. You will be able to control this speed with PWM.


  • Fan speed can be controlled
  • There is not much noise


  • Expensive
  • Hubs are made up of plastic and do not look good.

Read more: 4 Best Gaming Chairs: Top Computer Chairs For PC Gamers

Noctua NF A14 

Noctua NF A14

Noctua is one of the known brands and has been offering some great products to its customers. It has now launched a whole new fans series within a range of 40 to 140mm cases. The best thing about this product is that it can reach an RPM of 1500 and at that RPM as well, it offers 82.5 CFM. Moreover, even at the highest speed, it keeps the noise level less than 24db.


  • Manufacturer warranty of 6 years
  • Silicone pads reduce vibrations.


  • Expensive
  • The color is off for most people

Winding Up

We have come to the end of the post and we have explained to you the factors that you will have to keep in mind while choosing the best 140mm case fans. We have also listed our top 2 choices for the same.

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