10 Best 120mm Case Fan 2022 – Reviews & Guide

A 120mm case fan is a 120mm x 25mm fan that attaches onto the side panel of your computer case. The purpose of a case fan is to keep the air moving around in your case so that it doesn’t get stagnant and hot. Most cases ship with one or more fans, but they’re almost always underpowered and inadequate.

The 120mm case fans are quiet while delivering enough airflow to cool your components. They also look great in any build and come in different colors, so you can match them to your build theme.

As a consequence, there is a rise in the temperature of your PC. Your processor and other components can get damaged due to overheating. So buying a good quality CPU fan for your computer is essential.

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PCs with not enough ventilation are more prone to heating. To keep your computer cool, you should buy a CPU fan, as a good one will have excellent thermal management and low noise levels, which will help you concentrate on your work.

Are 120mm fans enough?

A 120mm fan is a very common size, it’s quiet and moves a good amount of air. You could also get an 80mm fan, which would be quieter and move less air, but you have less choice in the matter. If you want something quieter and move even less air, you’re going to have to mess around with trying to fit a bigger fan into the case.

If you get a 140mm fan or larger, the noise reduction is pretty big, but there isn’t a huge difference in airflow. However,140mm fans won’t fit in a lot of cases so that may not be an option for you.

Is 1200 RPM fan enough for PC?

No, 1200 rpm is not enough for a PC. A case fan should be at least 2000 RPM (rated) and preferably higher.

Generally you want fans that exhaust more air than intake, because the processor and GPU produce more heat than the power supply does. If you only have one fan, it should be an intake in the front of your case, but if you can afford it, get two fans and put one on the side panel as an exhaust.

1.Corsair LL Series LL120 RGB 

Best 120mm Case Fan
ASINB075VGN4M1
Customer Reviews4.7 out of 5 stars    6,566 ratings
4.7 out of 5 stars
Best Sellers Rank#36,363 in Computers & Accessories (See Top 100 in Computers & Accessories)
#289 in CPU Fans
Date First Available21 October 2017
PackerCorsair (Hong Kong) Limited, Suite 2602-03, 26/F, Millennium City 5, 418 Kwun Tong Road, Kowloon, Hong Kong, Toll Free# 1800-425-5464, indiservice@corsair.com
ImporterSupertron
Item Dimensions LxWxH12 x 12 x 2.5 Centimeters
Net Quantity1 Unit
Generic NameFan

The Corsair LL Series 120 RGB fans each contain 16 independent RGB LEDs, split between two separate light loops that allow for nearly endless lighting effects and colors.

The LL120 RGB uses a 4-Pin RGB connector to give you control over the lighting through compatible software, or built-in modes to glow to the beat of your music or change color based on the temperature of your system.

The rubberized cable management ring helps organize your cables, and PWM fan control allows for dynamic speed adjustment between 600 rpm to 1500 rpm so you can find just the right balance of air movement and noise level.

2.Arctic F12 120mm Fluid Dynamic Bearing Case Fan 

Best 120mm Case Fan
ASINB00H3T1KBE
Customer Reviews4.5 out of 5 stars    38,961 ratings
4.5 out of 5 stars
Best Sellers Rank#50,103 in Computers & Accessories (See Top 100 in Computers & Accessories)
#427 in CPU Fans
Date First Available21 October 2017
Item Dimensions LxWxH11.9 x 11.9 x 2.5 Centimeters
Net Quantity1.00 count

The Arctic F12 PWM control model provides efficient cooling for home and office computers. This 120mm fan combines a fluid-dynamic bearing with the added functionality of a Pulse-Width Modulation (PWM) controller that allows you to adjust both the fan speed and noise level, depending on your computing needs.

This powerful fan effectively cools your computer by moving 57 CFM of air over it per second and is able to rotate at approximately 300 to 1350 RPM. The ball bearings also help extend the life of this quality fan to approximately 40,000 hours.

3.ARCTIC P12 PWM PST RGB 0dB case Fan

Best 120mm Case Fan
ColourBlack
Ean0840033400947 , 4895213703147
Included Components1 RGB case fan, 1 set of mounting screws, 1 instructions insert
Item Weight159 grams
Maximum Rotational Speed2000.0 rpm
Model NumberACFAN00186A
Noise Level0.3
Number of Items1

The ARCTIC’s P12 combines a high-quality fan with the power of an RGB controller. The unique design of the PST allows for 14 addressable RGB LEDs to be used to create an impressive light show.

The illumination is controlled by pulse-width modulation, which means there is no flickering and it is completely flicker-free thanks to the dimming function.

To maintain static pressure and airflow characteristics the PWM PST can switch between different RPM levels smoothly which eliminates any sudden changes in sound or operation speed.

4. SilverStone Technology SST-FF121 120mm Ultra Fine Fan

Best 120mm Case Fan
ASINB0036WTDHK
Customer Reviews4.6 out of 5 stars    1,305 ratings
4.6 out of 5 stars
Best Sellers Rank#209,139 in Computers & Accessories (See Top 100 in Computers & Accessories)
#36 in Fan Grills
Date First Available8 August 2014
Item Dimensions LxWxH12 x 0.5 x 12 Centimeters

The FF121 features an ultra-thin frame that measures only 15mm thick. The honeycomb grill further increases airflow focus while preventing dust from entering.

The black coating gives the fan an elegant look and feels while the PWM control system allows fine-tuning for excellent performance. The FF121 is compatible with all standard 120mm fan holes and is perfect for use in high-performance computers and cooling systems.

5. Cooler Master SickleFlow 120 – Sleeve Bearing 120mm

Best 120mm Case Fan
ASINB0046U6DTC
Customer Reviews4.4 out of 5 stars    6,109 ratings
4.4 out of 5 stars
Best Sellers Rank#151,194 in Computers & Accessories (See Top 100 in Computers & Accessories)
#1,450 in CPU Fans
Date First Available14 January 2016
Item Dimensions LxWxH12 x 12 x 2.5 Centimeters

The Cooler Master SickleFlow 120-Sleeve Bearing 120 mm is a part of the S-Flex series of fans from Cooler Master, which feature Fluid Dynamic Bearings instead of regular bearings. With PWM control, it allows the fan’s speed to be adjusted from 1100 RPM on the bottom to 2000 RPM at the top.

The sleeve bearing allows for a longer life span for use and smooth operation. The lighting rig can be easily modified using a knife or scissors to fit your color scheme and requirements.

6. Thermaltake Riing 12 Series High Static Pressure 120mm Circular LED Ring Case/Radiator Fan

Best 120mm Case Fan
ASINB00VRKVG9Q
Customer Reviews4.7 out of 5 stars    322 ratings
4.7 out of 5 stars
Best Sellers Rank#378,595 in Computers & Accessories (See Top 100 in Computers & Accessories)
#4,303 in CPU Fans
Date First Available24 June 2016
Item Dimensions LxWxH17.8 x 2.5 x 12.7 Centimeters

These LED fans are equipped with magnetic levitation bearings, which are frictionless, wear-resistance, and waterproof. The LED Riing 12 series is optimized for heat dissipation and low noise operations.

It is designed for PC chassis with a 12cm fan hole. With the patented LED lighting module, highlighting the nature of the Riing 12 series, it also comes with a patented LED on the ring body along with a glowing ring on the edge of fan blades for decorative purposes.

7. Noctua NF-S12A PWM, Premium Quiet Fan

Best 120mm Case Fan
ASINB00BEZZBFO
Customer Reviews4.9 out of 5 stars    2,054 ratings
4.9 out of 5 stars
Best Sellers Rank#178,649 in Computers & Accessories (See Top 100 in Computers & Accessories)
#179 in Case Fans
Date First Available8 August 2014
Item Dimensions LxWxH12 x 2.5 x 12 Centimeters

With a diameter of 25 millimeters, the NF-S12A PWM fan comes in a 120-millimeter size and uses SSO2 bearings. The mounting holes on this fan are spaced 60 millimeters apart, allowing it to be mounted with other fans at most points.

The manufacturer recommends an ideal temperature range between zero and fifty degrees Celsius for optimum performance from the fan; to ensure that this doesn’t happen, the fan features sleeved cables and connectors to reduce internal stresses on the unit itself.

8. Antec TrueQuiet 120 120mm Case Cooling Fan

Best 120mm Case Fan
ASINB009T00IYK
Customer Reviews4.4 out of 5 stars    511 ratings
4.4 out of 5 stars
Date First Available24 June 2016
Item Dimensions LxWxH12 x 12 x 2.5 Centimeters

Antec engineers designed the TrueQuiet 120 case fan to meet the performance and quality standards you’ve come to expect from Antec products.

With a 120mm cooling fan, a 2-way switch for selecting high or low speeds, white accent LED lighting, and superbly designed fan blades that increase airflow and reduce noise, this fan provides exceptional cooling efficiency at an affordable price.

The large rubber feet help prevent vibration from being transmitted into your case. Just plug the 3-pin connector into your motherboard’s fan header and you’re off.

9. NZXT AER RGB 2 – HF-28120-B1 – 120mm

Best 120mm Case Fan
ASINB07GVHSSWR
Customer Reviews4.7 out of 5 stars    2,054 ratings
4.7 out of 5 stars
Best Sellers Rank#85,323 in Electronics (See Top 100 in Electronics)
#152 in CPU Fans
Date First Available14 January 2019
Item Dimensions LxWxH11.9 x 2.5 x 11.9 Centimeters
Generic NameNZXT AER RGB 2 120MM CASE FAN FOR HUE 2 (HF-28120-B1)

The NZXT AER RGB 2 fans are equipped with fluid dynamic bearings to provide a silent operation, and can also be used as addressable RGB lighting. Featuring a uniquely shaped fan blade to give you more performance where you need it.

To further the experience, our Advanced Active Noise Cancellation technology is integrated into the AER fans through high-quality onboard components to keep your system quiet so you can focus on gaming.

10. ANTEC Cooling Fan Case TWOCOOL 120

Best 120mm Case Fan
ASINB07HCKWF2X
Customer Reviews4.5 out of 5 stars    38,961 ratings
4.5 out of 5 stars
Best Sellers Rank#42,543 in Computers & Accessories (See Top 100 in Computers & Accessories)
#336 in CPU Fans
Date First Available12 December 2018
Item Dimensions LxWxH14 x 14 x 2.7 Centimeters

This case fan provides excellent airflow using very little power. The fan is optimized for static pressure; it can work equally well on heatsinks and radiators.

The unique design of the blades ensures precise airflow even with higher air resistance, which gives you quiet operation and maximum cooling at a minimum noise level.

An integrated fan controller provides a broad RPM range ±10%, fine-tuning is possible to suit your individual requirements.