The 9 Best 140 mm Case Fans 2021 Reviews & Buying Guide


If you are familiar with computers, then you know that most of the internal components produce heat during use. And if not cooled down properly, they will not perform at their optimal performance levels.

Hence, it is quite important to have proper cooling in your computer using something like the best 140 mm case fans present below that have been chosen based on these factors:

  • Number of Fans: In most computer cases, you have to install multiple cooling fans for the best cooling performance. Thus, instead of buying multiple fans, you can simply buy a pack of fans that can contain 3 to 5 fans in the box where a higher fan count generally results in a high value for money.
  • Fan Type: It is also quite important to check the type of fan that you are getting since not all 140 mm fans are the same. This primarily includes airflow and static pressure fans where airflow ones are ideal for intake fans and static pressure ones are designed for radiators and CPU coolers.
  • Fan Lighting: As you would have seen with most modern computer components, case fans may also include inbuilt lighting. Such computer fans can quickly make your computer look much different. While some light-up fans have static color LEDs, other ones may also include RGB lighting allowing you to easily change colors as per your liking.

There is also a complete “Buying Guide” allowing you to easily buy the best 140 mm case fans by the time you make it to the end of this list. For now, check out this list of the 9 best 140 mm Case Fans.

Best 140 mm Case Fans 2021

Best 140 mm Case Fans Reviews

1. Cooler Master SickleFlow Square Frame Fan

Cooler Master SickleFlow Square Frame Fan

Cooler Master is known for all sorts of feature-rich computer products and accessories that also offer pretty good performance when it comes to cooling your PC.

The Cooler Master SickleFlow 140 mm case fan is present in the 1st position in this list since this allows you to easily change the colors of this ARGB fan to any color of your choice. Other than being an ARGB fan, it is also quite easy to control with its PWM controller. With this, you can change the fan speed between 650 and 1400 RPM.

While this is primarily an airflow fan, its air balance design also offers decent air pressure making it an all-rounder fan. Being a Cooler Master offering, the given 2-year warranty is to be expected.

Best Features:

  • Comes with 1 fan in the box
  • Airflow 140 mm case fan
  • Offers ARGB lighting options
  • Uses PWM connector for control
  • Fan speed of up to 1400 RPM
  • Comes with a 2-year warranty

Pros:

  • Adjustable colors with ARGB lighting
  • Decent airflow with high fan speeds
  • Uses PWM connector for ease of use

Cons:

  • Slightly on the expensive side

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2. ARCTIC P14 PWM – 140 mm Case Fan

ARCTIC Case Fan

As you can tell by the name, Arctic is a brand of computer components that makes cooling products like CPU coolers and computer case fans that offer great performance.

Arctic’s P14 PWM 140 mm case fan is present in the 2nd position in this listicle as you get an excellent value for money with this case fan. Even though it is one of the cheapest options out there, you get excellent cooling from its silent motor.

When combined with its PWM connector, you get variable fan speeds of 200-1700 RPM. Since it is a budget case fan, you only get a single fan in the box which is to be expected. But even then, it still manages to include a decent 1-year warranty for reliability.

Best Features:

  • Comes with 1 fan in the box
  • Static pressure 140 mm case fan
  • Uses PWM connector for control
  • Fan speed of up to 1700 RPM
  • Comes with a 1-year warranty

Pros:

  • Excellent cooling performance
  • High value for money fan
  • Quite silent during operation

Cons:

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3. CORSAIR AF140 LED Low Noise Cooling Fan

CORSAIR AF140 LED Low Noise Cooling Fan

Corsair is primarily a brand of computer cases that also happens to be offering fans for its cases that can be great for cooling.

This Corsair AF140 LED 140 mm case fan is present in the 3rd position in this article because it can be a great option if you are looking for a pack of fans. Both of the fans included in the box offer blue LED lighting for aesthetics.

Coming to the cooling performance, you get a decent 1400 RPM speed from these PWM fans. Although, their noise can be a bit high compared to others. Just like other popular brands of computer components, this one also includes a 2-year warranty.

Best Features:

  • Comes with 2 fans in the box
  • Airflow 140 mm case fan
  • Offers blue LED lighting
  • Uses PWM connector for control
  • Fan speed of up to 1400 RPM
  • Comes with a 2-year warranty

Pros:

  • Pack of multiple fans
  • Decent cooling performance
  • Comes with blue lights

Cons:

  • Noise output can be a bit high

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4. Uphere 140mm Case Fan

Uphere 140mm Case Fan

Uphere is a fairly new brand of PC fans that is known to offer highly affordable and high value for money offerings to its buyers.

The Uphere 140 mm case fan can be the perfect choice for you if you wish to get a high value for money fan pack. Unlike most other offerings out there, this one includes a total of 3 fans in the box. Although, these fans use 3 pin and Molex connectors, unlike the traditional PWM connectors.

Fortunately, even then it is able to offer a decent speed of 1000 RPM which is good enough for a budget airflow fan. Another great thing about this budget pack of fans is that you get a 1-year warranty included with it.

Best Features:

  • Comes with 3 fans in the box
  • Airflow 140 mm case fan
  • Uses 3 pin and Molex connectors for control
  • Fan speed of up to 1000 RPM
  • Comes with a 1-year warranty

Pros:

  • Large pack of fans
  • Quite a high value for money
  • Decent build quality and warranty

Cons:

  • Does not use PWM connector

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5. Noctua NF-A14 Fan

Noctua NF-A14 Fan

When you are talking about case fans, Noctua can be considered as a premium brand that offers high-end case fans with industry-leading cooling performance.

Noctua’s NF-A14 PWM 140 mm case fan is the best option in this listicle if you want a high-performance option. Despite offering the best cooling performance, it is still the most silent fan present here. It is able to do so using a PWM connector for premium speed control.

You get an excellent fan speed of up to 1500 RPM with this airflow designed fan. While it does not have any RGB lighting, you do get replaceable colored colors for customizability. Being a premium brand of fans, the included 6-year warranty is to be expected.

Best Features:

  • Comes with 1 fan in the box
  • Airflow 140 mm case fan
  • Offers replaceable colored corners
  • Uses PWM connector for control
  • Fan speed of up to 1500 RPM
  • Comes with a 6-year warranty

Pros:

  • Excellent cooling performance numbers
  • Most silent case fan
  • Warranty period for long term usage

Cons:

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6. NZXT AER F – 140mm Gaming Computer Fan

NZXT AER F - 140mm Gaming Computer Fan

NZXT is another brand of computer cases and CPU coolers that also offers fans for the same that offer decent performance.

This NZXT AER F 140 mm case fan can be another viable option if you are looking for a high-performance option. Other than using fluid bearings, this fan relies on a PWM connector.

Due to this connector, you are able to use this fan at up to 1800 RPM which results in excellent cooling performance. Unfortunately, this does result in a bit of increased fan noise as compared to others. With NZXT case fans, you get a 2-year warranty similar to various others.

Best Features:

  • Comes with 1 fan in the box
  • Airflow 140 mm case fan
  • Uses PWM connector for control
  • Fan speed of up to 1800 RPM
  • Comes with a 2-year warranty

Pros:

  • Fairly decent value for money
  • Quite a high fan speed rating
  • Uses PWM connector for adjustments

Cons:

  • Slightly loud for some users

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7. Be Quiet BL040 Pure Wings Case Fan

Be Quiet BL040 Pure Wings Case Fan

Be Quiet is considered as one of the best alternatives to Noctua since you get very similar numbers when you are talking about noise to cooling performance ratio.

The Be Quiet BL040 Pure Wings 2 140 mm case fan is among some of the most silent fans out there. But being a PWM airflow fan, its cooling performance is still great. Although, its fan speed of up to 1000 RPM can be a bit low for use with radiators.

Similar to most other case fans, this also comes as a single fan in the box. A great thing about Be Quiet and its Pure Wings 2 case fan is that you get an included 3-year warranty.

Best Features:

  • Comes with 1 fan in the box
  • Airflow 140 mm case fan
  • Uses PWM connector for control
  • Fan speed of up to 1000 RPM
  • Comes with a 3-year warranty

Pros:

  • Very silent fan motor
  • Great cooling performance
  • Includes a warranty

Cons:

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8. Thermaltake High Static Circular Ring Case

Thermaltake High Static Circular Ring Case

Other than its high-end RGB fans, you can also find budget-friendly light-up fans from Thermaltake which can be great for aesthetics.

Thermaltake’s Ring 14 140 mm case fan is for those who are looking for a budget light up fan. With this fan, you get a white LED ring for illumination. Although being a budget offering, it does not use a PWM connector.

Fortunately, you still get decent cooling performance from this static pressure fan. This is primarily due to the reason that you get a fan speed of up to 1500 RPM which is fairly high while being quite silent. Unlike other budget offerings, Thermaltake also includes a 3-year warranty with it.

Best Features:

  • Comes with 1 fan in the box
  • Static pressure 140 mm case fan
  • Offers white LED lighting
  • Uses 3 pin and Molex connector for control
  • Fan speed of up to 1500 RPM
  • Comes with a 3-year warranty

Pros:

  • Includes LED lighting
  • Budget case fan with static pressure design
  • Great cooling performance for the price

Cons:

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9. Kingwin 140mm Silent Fan for Computer Cases

Kingwin 140mm Silent Fan for Computer Cases

Kingwin is one of the smallest brands of computer cooling products like CPU coolers as well as case fans like the one stated here in this listicle.

This Kingwin CF-014LB 140 mm case fan is the cheapest option stated here making it a viable option for all budget buyers. Being a budget fan, its Molex connector is to be expected with this fan. Fortunately, this airflow fan still stays fairly silent during operation.

Since you also get an RPM rating of 950 RPM, you can expect decent cooling performance with it especially at the given price tag. Kingwin also includes a 1-year warranty with this budget offering making it fairly reliable and durable.

Best Features:

  • Comes with 1 fan in the box
  • Airflow 140 mm case fan
  • Uses 3 pin and Molex connector for control
  • Fan speed of up to 950 RPM
  • Comes with a 1-year warranty

Pros:

  • Affordable case cooling fan
  • Decent cooling performance
  • Includes standard warranty

Cons:

  • Relies on Molex connector

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Buying Guide for the Best 140 mm Case Fans

Whether it is your computer cabinet or your CPU cooler, both of them need to have high-performance fans to keep everything cool. And usually, it is recommended to get a large-sized fan for high cooling performance.

Thus, some of the best 140 mm case fans have been mentioned above with their details like features and specifications. If you wish to learn even more, here is a detailed buying guide for the best 140 mm case fans:

Number of Fans

Since you are most likely going to use multiple fans on your computer, most of you would be interested in buying multiple of them. Although, instead of buying multiple fans, you can simply get a pack of fans that may contain 3 or 5 fans. Not only these fan packs allow you to easily install multiple fans in your computer case, but you also get a better value for money.

Fan Type

While buying a fan, it is quite important to check the type of fan that you are getting. Other than the size, computer fans also differ in terms of their types as you can find both airflow as well as static pressure fans. Out of these two, an airflow fan can be a great intake fan and a static pressure fan is more ideal for use with water cooling radiators.

Fan Lighting

Just like most other computer components and peripherals, even case fans come with lighting options these days. Whether it is a single color LED fan or an RGB one, such light-up fans can completely change the aesthetics of your computer. Hence, it can be a great idea to get 140 mm case fans with inbuilt lighting for better looks of your computer.

Fan Speed

Other than the aesthetics of your computer case fans, you would also want to get high cooling performance out of them. One easy way to ensure this is to simply check their maximum fan speed which is generally given in RPM. You can find fan speed ratings like 1200 RPM, 1500 RPM, 1800 RPM, and many others. While a higher RPM rating generally offers better cooling performance, it also results in increased fan noise which is something to consider if you want to have a silent computer.

Fan Connector

Before you can benefit from the cooling performance offered by the different fans present in your computer, it is also important to connect your fans to your motherboard for controlling the fan speeds and powering the fans. Although, not all fans use the same fan connector type since you can find 4 pin PWM connectors as well as 3 pin ones that include a Molex plug for power. Out of these two options, the former one is better for ease of use and better fan speed control.

Warranty

Because computer case fans have motors inside them, they can potentially fail over time. Hence, it is highly important to ensure that you are getting a reliable one. One easy way to ensure this is to simply check their included warranty as computer fans offer 2 year long, 3 year long, and even 6 year warranty periods where higher is always better.

Conclusion

You can find various size options out there while buying fans for your computer case or CPU coolers including both air coolers and water cooling radiators. While smaller fan options like 92 mm or 120 mm may not be the most effective, a 200 mm fan cannot be installed in all computer cases. Because of this, the best 140 mm case fans discussed earlier make for a great pick for high cooling performance.

As per all these factors, here are some of our favorite recommendations for the best 140 mm case fans:

  • With the Cooler Master SickleFlow 140 V2 fans, you can easily customize them to any color or design since these are ARGB fans. Thanks to its PWM connector, you can change the fan speed between 650 RPM to 1400 RPM as per your choice. This airflow fan also includes a decent 2-year warranty being an offering from a reputable brand like Cooler Master.
  • The Noctua NF-A14 140 mm case fan is the best performing option stated above which is to be expected at its premium price tag. Even though this fan has a speed of up to 1500 RPM via its PWM connector, it is still the most silent case stated here. While you do not get lighting with this fan, it does offer swappable colored corner panels for customization.
  • Despite being one of the cheapest 140 mm case fans out there, the Arctic P14 offers quite a similar performance to the previous Noctua one in terms of its noise output. Since it also goes up to 1700 RPM speeds, you can expect excellent cooling from this PWM pressure optimized fan.



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