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PC Case Fans

A powerful fan should be a part of every PC case, whether it has high-end gaming or energy-saving components. This is because PC case fans ensure the proper airflow and thus the cooling of the entire computer. But how do I choose the right PC case fan for my device? Here is some advice.

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The Most Important Parameters of PC Case Fans

Each PC case fan has several important parameters that you should consider when choosing one. These are mainly the size of the fan itself, its speed, its noise level and its airflow.

PC fan 120mm

PC case fan

PC ventilátor

PC fan 4 pin

What Size Should PC Case Fans Be?

PC case fans are available in many sizes. The most popular fans are the 120mm and 140mm variants, but smaller or larger fans are not unusual. What size will be perfect for you?

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The Advantages of Small PC Case Fans

  • The advantage may be the lower purchase price of a small fan.
  • The small dimensions guarantee compatibility with compact enclosures.

Advantages of Larger PC Case Fans

  • Large fans require lower speeds for the same airflow than their more compact counterparts.
  • Thanks to larger blades and lower speeds, large PC fans are also quieter.

The RPM is an Important Parameter of PC Case Fans

Each PC case fan has a specified minimum and a maximum number of revolutions per minute (RPM). Some models offer the user the possibility to control the speed. In this case, it's up to you whether you prefer power or a quiet operation. Take a look at speed-controlled fans.

Smart fan with speed control

Fan speed control can be automatic or manual. Always make sure that the model you choose supports the control. Motherboards with a voltage adjustment function offer the possibility to control unsupported fans.

Other Features of PC Case Fans

When choosing a new PC case fan, consider a few other features and functions that affect cooling performance, noise levels and a few other aspects of daily use.

  • The PWM fan allows the user to control the speed (RPM) at will.
  • Maximum TDP refers to how much heat the fan can dissipate. Processors and graphics cards also have this parameter.
  • The bearing type indicates the way the blades are attached to the centre of the fan. The most common systems are HBS, SSO2 or FDB.
  • Backlit PC case fans can glow in different colours. Some support a single colour and others dazzle with the entire RGB spectrum.

Do you need a whole set of PC case fans? Do not buy them individually. Take a look at convenient sets.

PC Case Fans with RGB Backlighting - Make your PC Stand Out

PC case fans with RGB backlighting support more than 16 million colours and shades. So your computer can really play with all the colours. When combined with a transparent cabinet, you can create a true work of art.

PC fan

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Wondering whether to choose a 5V, 12V or perhaps 24V PC case fan? Choose them in the clear category of Fans by Voltage.

Why Get a Silent PC Case Fan?

Do you dislike a lot of noise around you? Then a silent PC case fan is exactly what you need. These coolers boast high performance and minimal noise, so you will hardly notice them spinning. Take a look at Quiet Fans.


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231 Results
4.8 20×
ARCTIC S12038-8K
PC Fan - size: 120 × 38mm, 800 RPM - 8000 RPM, 12 V, 4pin PWM, PWM
Great price 14.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: CBs12038a3
4.3
ARCTIC S12038-4K (3 Pack)
PC Fan - size: 120 × 38mm, 600 RPM - 4000 RPM, 12 V, 4pin PWM, PWM
30.90 €
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In stock 3 pcs
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Order Code: CBs12038a2
5.0
Noctua NV-FS1
Fan - Desktop, noise level of 22,6 dB, power: 1,68W, oscillation, colour black
95.90 €
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In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: CTnvfs1
4.5
Fractal Design Dynamic X2 GP-12 Black
PC Fan - size: 120 × 25mm, 1200 RPM, 12 V, maximum noise level of up to 19,4 dB, 3pin
Great price 14.90 €
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In stock > 10 pcs
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Order Code: CBgp12x2d1
5.0
Noctua NF-A14x25r G2 PWM
PC Fan - size: 140 × 25mm, 1500 RPM, 12 V, maximum noise level of up to 24,8 dB, 4pin PWM, PWM
36.90 €
Currently Unavailable
Order Code: CTnfa1425rg2a
5.0
Noctua NF-A14x25r G2 PWM Sx2-PP
PC Fan - size: 140 × 25mm, 1500 RPM, 12 V, maximum noise level of up to 24,8 dB, 4pin PWM, PWM
71.90 €
Buy
In stock 4 pcs
Order Code: CTnfa1425rg2b
5.0
Montech METAL PRO 12 ARGB PWM White
PC Fan - size: 120 × 28mm, 600 RPM - 2200 RPM, 12 V, maximum noise level of up to 29,1 dB, 4pin PWM + 3pin ARGB, RGB backlighting
16.90 €
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In stock 3 pcs
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Order Code: MONa2d
4.3
Montech GF120 ARGB PWM White
PC Fan - size: 120 × 25mm, 800 RPM - 1600 RPM, 12 V, maximum noise level of up to 25,5 dB, 4pin PWM + 3pin ARGB, RGB backlighting
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 12.51 €
Amazing Deal 13.90 €
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In stock > 10 pcs
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Order Code: MONa2f
5.0
Noctua NF-A4x10 24V PWM
PC Fan - size: 40 × 10mm, 5000 RPM, 24 V, maximum noise level of up to 19,6 dB, 4pin PWM, PWM
14.90 €
Currently Unavailable
Order Code: CTnfa41024p
4.8 33×
Be quiet! Silent Wings 4 140mm PWM
PC Fan - size: 140 × 25mm, 1100 RPM, 12 V, maximum noise level of up to 13,6 dB, 4pin PWM
24.90 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: BLsw4b2
5.0
Be quiet! Silent Wings 4 PRO 140mm PWM
PC Fan - size: 140 × 25mm, 2400 RPM, 12 V, maximum noise level of up to 36,8 dB, 4pin PWM
31.90 €
Currently Unavailable
Order Code: BLsw4p2
5.0
Be quiet! Silent Wings 4 high-speed 140mm PWM
PC Fan - size: 140 × 25mm, 1900 RPM, 12 V, maximum noise level of up to 29,3 dB, 4pin PWM
23.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: BLsw4h2
5.0 14×
Be quiet! Silent Wings 4 PRO 120mm PWM
PC Fan - size: 120 × 25mm, 3000 RPM, 12 V, maximum noise level of up to 36,9 dB, 4pin PWM
29.90 €
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BLsw4p1
4.9 16×
Be quiet! Silent Wings 4 120mm PWM
PC Fan - size: 120 × 25mm, 1600 RPM, 12 V, maximum noise level of up to 18,9 dB, 4pin PWM
22.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BLsw4a2
4.8
Be quiet! Silent Wings 4 high-speed 120mm PWM
PC Fan - size: 120 × 25mm, 2500 RPM, 12 V, maximum noise level of up to 31,2 dB, 4pin PWM
22.90 €
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BLsw4h1
5.0 29×
Montech RX120 PWM Black
PC Fan - size: 120 × 25mm, 800 RPM - 1600 RPM, 12 V, maximum noise level of up to 27 dB, 4pin PWM + 3pin ARGB, ARGB backlight colour, PWM
Great price 10.90 €
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: MONa23a
4.8 33×
Montech AX120 PWM White
PC Fan - size: 120 × 25mm, 800 RPM - 1600 RPM, 12 V, maximum noise level of up to 27 dB, 4pin PWM + 3pin ARGB, ARGB backlight colour, PWM
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 9.81 €
10.90 €
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: MONa2ab
4.8 33×
Montech AX120 PWM Black
PC Fan - size: 120 × 25mm, 800 RPM - 1600 RPM, 12 V, maximum noise level of up to 27 dB, 4pin PWM + 3pin ARGB, ARGB backlight colour, PWM
9.10 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: MONa2a
5.0 18×
Be Quiet! Pure Wings 3 140mm PWM White
PC Fan - size: 140 × 25mm, 1200 RPM, 12 V, maximum noise level of up to 21,9 dB, 4pin PWM, PWM
12.90 €
Currently Unavailable
Order Code: BLpw3m140p2
5.0 18×
Be Quiet! Pure Wings 3 140mm PWM high-speed White
PC Fan - size: 140 × 25mm, 1800 RPM, 12 V, maximum noise level of up to 30,5 dB, 4pin PWM, PWM
13.90 €
Buy
In stock 1 pcs
Order Code: BLpw3m140pw2
5.0
Be Quiet! Pure Wings 3 120mm PWM White
PC Fan - size: 120 × 25mm, 1600 RPM, 12 V, maximum noise level of up to 25,5 dB, 4pin PWM, PWM
11.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BLpw3m120p2
4.9 42×
Be quiet! Pure Wings 3 120mm PWM
PC Fan - size: 120 × 25mm, 1600 RPM, 12 V, maximum noise level of up to 25,5 dB, 4pin PWM, PWM
11.90 €
Currently Unavailable
Order Code: BLpw3m120p
4.9 13×
Be quiet! Pure Wings 3 140mm
PC Fan - size: 140 × 25mm, 1200 RPM, 12 V, maximum noise level of up to 21,9 dB, 3pin
12.90 €
Currently Unavailable
Order Code: BLpw3m140
4.9 33×
Be quiet! Pure Wings 3 140mm PWM
PC Fan - size: 140 × 25mm, 1200 RPM, 12 V, maximum noise level of up to 21,9 dB, 4pin PWM, PWM
12.90 €
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BLpw3m140p

PC Case Fans

PC Case Fans

In the category PC Case Fans on Alza.at, we currently have a total of 232 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app.
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