Best 120mm Case Fans for PC

If there is one thing that we are all too familiar with, it is the feeling of the bottom of our laptops heating up as we try to use them just a little bit more than we probably should. Any gamer worth their salt can tell you that the problem can affect desktops as well. Our long, intense gaming sessions can be cut short in an instant if your computer overheats.

Having the proper fan, though, can prevent this from becoming an issue. Finding the right one can be a bit overwhelming if you are new to it, though. To help you out, we are going to take a 5 of the best 120mm case fans for your PC. We will look at each option in depth as well as take a look at both the pros and cons of these fans so that you know exactly what you are looking at rather than leaving you to a game of blind trial and error.

Tree New Bee Cooling Pad With 120mm Fans

First up on our list, we have the Tree New Bee Cooling Pad with 120mm Fans. The first thing that you will notice with this 4-fan device is how slim and lightweight it is. This means that you can use laptop stand wherever you go without feeling encumbered.

In appearances, this fan has a black case and neon blue fans. These fans are also lit with a bright blue LED light for extra flair. In addition, you are protected from a sore neck with this cooling pad’s ergonomic design. You can flip out the legs on the bottom of this cooling fan to elevate your laptop a bit, allowing you to angle it toward you and create an easier angle for your wrists.

These four fans also work hard to be a powerful cooling force without creating a lot of noise, so you don’t have to worry about any annoying background noise while you play your favorite games. Extra USB ports also allow you to get more done with this cooling pad as well.


  • Effective
  • Ergonomic
  • Quiet
  • 1-year warranty


  • Not very durable for long-term use

AC Infinity MULTIFAN S3 120mm USB Fan

Next up on our list, we have the AC Infinity MULTIFAN S3 120mm USB fan. The construction of this black fan makes for simple and easy use; all you have to do is plug it into the USB port on your laptop. At that point, it is easy to reap the cooling benefits of this fan for your laptop or even your console.

This fan is rather small and ultra-quiet, making it easy to use wherever you go. It also features a multi-speed controller, so you can adjust this fan to work at whatever speed you need at the time.

These fans are also long lasting. Each of these fans is constructed with dual ball bearings that are tested to have a lifespan of 67,000 hours. This means that you could even run this fan for over 7 and a half years straight without it giving out!


  • Durable
  • Quiet
  • Portable


  • Tends to develop a rattling noise after a while

Rosewill 120mm Long Life Sleeve Fan Case

The next fan up on our list is the Rosewill 120mm Long Life Sleeve Fan Case. While the one we have chosen is the 4-pack Cooling ROCF-13001, Rosewill also offers a 120mm Blue LED Fan, 120mm Blue LED 2-pack fans, 120mm Red LED, and finally an 80mm Blue LED fan. For an extra fee, Rosewill even offers expert installation of their products.

This fan is small and lightweight, meaning it is easy to use on the go and won’t leave you and your laptop chained to your desk. With 1200 rotations per minute (RPM) a margin of difference of 10% in either direction, you will be able to depend on how well it works.

So far as sound level, this fan runs at 22 dBA. While this isn’t bad, it is slightly louder than the other options we have discussed on this list.


  • Portable
  • Affordable
  • Plenty of color and style options


  • Slightly louder than other options on this list

Corsair ML120 120mm Premium Levitation Fan

            Corsair is a name that anyone in computers or gaming probably recognize rather quickly as one of quality. That’s why in this list, we were sure to include one of their best cooling fans. Corsair’s ML120 120mm Premium Levitation Fan lives up to the same standards as the rest of their line of electronics.

Much like the last model we looked at, this one comes with a variety of choices in color and the number of fans you get as well. With a 2,000 RPM control range, though, you will get a much wider array of speeds to choose from.

What really makes this fan unique though is the use of magnetic bearing or magnetic levitation. This allows your fan to work quieter, offer a higher performance, and feature a longer lifespan than most other models.


  • Durable
  • Quiet
  • Wide range of control


  • Expensive

Cooler Master SickleFlow 120-Sleeve Bearing 120mm LED Silent Fan

Last but not least, we are going to look at the Cooler Master SickleFlow 120-Sleeve Bearing 120mm LED Silent Fan. First, let’s look at the “silent” part of this fan’s name. At 19 dBA, this is actually one of the quietest options on this list.

This Cooler Master SickleFlow fan comes in a variety of options. For the most part, these come in different colors such as blue, red, and green but you can also choose between LED and non-LED options as well.

This is also one of the best fans that we have looked at when it comes to environmental friendliness. It is RoHS compliant, meaning that it meets all the standards that are required for a device such as this to be considered non-detrimental to the environment. With a lifespan of 50,000 hours, this option will last you a long time as well.


  • Long lasting
  • Inexpensive
  • Environmentally friendly
  • Range of options in color and lighting


  • Unlike other options that we have discussed, there is no built-in speed control on this fan


There are a lot of options that you can choose from when you are considering a cooling fan for your computer. First, we looked at a cooling pad. These options sit under your computer, rather than being installed in them, and offer you a portable and simple solution to any overheating problems. However, you can also choose to replace the cooling fan in your unit with an internal option. No matter which option that you decide is best for you, there is a device out there that will match your needs with no problem.

  • Updated September 4, 2020
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