Make sure your computer is getting the cooling it needs by picking up some extra case fans and PC cooling fans here at Ebuyer. Available in several sizes, with or without customisable RGB lighting.
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Case Fans and PC Cooling Fans (103 products)
Read more about Case Fans and PC Cooling Fans
CORSAIR AF SLIM Series AF120 SLIM 120mmx15mm Fluid Dynamic Fan Single Pack
- 120mm x 15mm
- Up to 1,400 RPM
- 11 Blade, PWM
- Fluid Dynamic Bearing
£ 13.98 inc. vat
£19.98save £6.00£ 11.65 ex. vat
£16.65save £5.00be quiet! 140mm Silent Wings 4 PWM Highspeed Fan
- 7 Blade 1900rpm
- 78.4CFM, 29.3dB
- Fluid Dynamic
- 4-Pin PWM
£ 22.98 inc. vat
£ 19.15 ex. vat
be quiet! 120mm Silent Wings 4 PWM Fan
- 9 Blade Inaudible Airflow Fan
- 1600rpm
- 48.7CFM, 18.9dB
- Fluid Dynamic
- 4-Pin PWM
£ 21.99 inc. vat
£ 18.32 ex. vat
be quiet! Light Wings 140mm PWM ARGB Case Fan - Triple Pack
- Fan Size: 140mm
- Fan Speed: 1500 rpm
- Fan Airflow: 56 CFM
- Bearing Type: Rifle Bearing
£ 55.98 inc. vat
£ 46.65 ex. vat
be quiet! Light Wings 140mm PWM High- Speed ARGB Case Fan
- Fan Size: 140mm
- Fan Speed: 2200 rpm
- Fan Airflow: 71.7 CFM
- Bearing Type: Rifle Bearing
£ 23.99 inc. vat
£ 19.99 ex. vat
be quiet! Light Wings 120mm ARGB PWM High Speed Case Fan
- Fan Size: 120mm
- Fan Speed: 2500 rpm
- Fan Airflow: 52.3 CFM
- Bearing Type: Rifle Bearing
£ 22.98 inc. vat
£ 19.15 ex. vat
CoolerMaster SickleFlow 120 ARGB 120mm Case Fan - Triple Pack
- 120mm Fan
- RGB Lighting
- New Blade Design
- 2 Years Warranty
£ 39.98 inc. vat
£43.49save £3.51£ 33.31 ex. vat
£36.24save £2.93Cooler Master MasterFan MF120 Halo 3-in-1 120mm Chassis Fan Kit
- Dual Loop Addressable RGB Lighting
- Silent Cooling Technology
- Hybrid Fan Blade Design
- Wide Range of Compatibility
- Wired ARGB controller
£ 77.49 inc. vat
£ 64.57 ex. vat
CORSAIR QL Series, iCUE QL120 RGB, 120mm RGB LED PWM White Fan, Single Fan
- 34 Individually Addressable RGB LEDs
- Brilliant White Housing
- Low-Noise 120mm Fan Blade
- Anti-Vibration Rubber Dampers
£ 37.98 inc. vat
£ 31.65 ex. vat
Corsair LL120 RGB 120mm White RGB LED PWM Single Fan
- Dual RGB Lighting Loop
- Striking White Housing
- Intelligent Control, Unlimited Possibilities
- Complete PVM Control
£ 26.99 inc. vat
£ 22.49 ex. vat
NZXT F120 RGB Duo 120mm PWM Fan 3 Pack with Controller White
- 3 x 120mm Fans
- Fluid Dynamic Bearing
- 48.58 CFM Ariflow
- 1 x 4-pin PWM
£ 99.99 inc. vat
£ 83.32 ex. vat
0% Interest offers available
Fractal Design Prisma AL-12 PWM 3P Computer case Fan 12 cm Black
- 120mm
- 7 Blade
- 4-pin
- PWM Support
£ 38.49 inc. vat
£ 32.07 ex. vat
Cooler Master MasterFan MF140 HALO² White Edition
- Larger Fan Blades
- Hybrid Frame Design
- Dual Loop ARGB LED Rings
- Improved Fan Controller IC
£ 20.99 inc. vat
£ 17.49 ex. vat
CORSAIR iCUE LINK Slim Cable 200mm
- Expand your iCUE LINK ecosystem
- Flexible positioning options
- Passes digital signal and current up to 7 amps
- 2 Year Warranty
£ 12.99 inc. vat
£ 10.82 ex. vat
CORSAIR iCUE LINK System Hub
- Connect up to 14 iCUE LINK devices
- Auto Detection and Installation
- Compact Design for Easy Installation
- Reduce Cabling Complexity
£ 49.98 inc. vat
£ 41.65 ex. vat
CORSAIR AF SLIM Series AF120 SLIM 120mmx15mm Fluid Dynamic Fan Single Pack
- 120mm x 15mm
- Up to 1,400 RPM
- 11 Blade, PWM
- Fluid Dynamic Bearing
QuickFind: 1539222
Mfr part code: CO-9050144-WW
£ 13.98 inc. vat
£19.98save £6.00£ 11.65 ex. vat
£16.65save £5.00be quiet! 140mm Silent Wings 4 PWM Highspeed Fan
- 7 Blade 1900rpm
- 78.4CFM, 29.3dB
- Fluid Dynamic
- 4-Pin PWM
QuickFind: 1536432
Mfr part code: BL097
£ 22.98 inc. vat
£ 19.15 ex. vat
be quiet! 120mm Silent Wings 4 PWM Fan
- 9 Blade Inaudible Airflow Fan
- 1600rpm
- 48.7CFM, 18.9dB
- Fluid Dynamic
- 4-Pin PWM
QuickFind: 1536425
Mfr part code: BL093
£ 21.99 inc. vat
£ 18.32 ex. vat
be quiet! Light Wings 140mm PWM ARGB Case Fan - Triple Pack
- Fan Size: 140mm
- Fan Speed: 1500 rpm
- Fan Airflow: 56 CFM
- Bearing Type: Rifle Bearing
QuickFind: 1536422
Mfr part code: BL078
£ 55.98 inc. vat
£ 46.65 ex. vat
be quiet! Light Wings 140mm PWM High- Speed ARGB Case Fan
- Fan Size: 140mm
- Fan Speed: 2200 rpm
- Fan Airflow: 71.7 CFM
- Bearing Type: Rifle Bearing
QuickFind: 1536418
Mfr part code: BL075
£ 23.99 inc. vat
£ 19.99 ex. vat
be quiet! Light Wings 120mm ARGB PWM High Speed Case Fan
- Fan Size: 120mm
- Fan Speed: 2500 rpm
- Fan Airflow: 52.3 CFM
- Bearing Type: Rifle Bearing
QuickFind: 1536415
Mfr part code: BL073
£ 22.98 inc. vat
£ 19.15 ex. vat
CoolerMaster SickleFlow 120 ARGB 120mm Case Fan - Triple Pack
- 120mm Fan
- RGB Lighting
- New Blade Design
- 2 Years Warranty
QuickFind: 1418975
Mfr part code: MFX-B2DN-183PA-R1
£ 39.98 inc. vat
£43.49save £3.51£ 33.31 ex. vat
£36.24save £2.93Cooler Master MasterFan MF120 Halo 3-in-1 120mm Chassis Fan Kit
- Dual Loop Addressable RGB Lighting
- Silent Cooling Technology
- Hybrid Fan Blade Design
- Wide Range of Compatibility
- Wired ARGB controller
QuickFind: 964987
Mfr part code: MFL-B2DN-183PA-R1
£ 77.49 inc. vat
£ 64.57 ex. vat
CORSAIR QL Series, iCUE QL120 RGB, 120mm RGB LED PWM White Fan, Single Fan
- 34 Individually Addressable RGB LEDs
- Brilliant White Housing
- Low-Noise 120mm Fan Blade
- Anti-Vibration Rubber Dampers
QuickFind: 958691
Mfr part code: CO-9050103-WW
£ 37.98 inc. vat
£ 31.65 ex. vat
Corsair LL120 RGB 120mm White RGB LED PWM Single Fan
- Dual RGB Lighting Loop
- Striking White Housing
- Intelligent Control, Unlimited Possibilities
- Complete PVM Control
QuickFind: 874504
Mfr part code: CO-9050091-WW
£ 26.99 inc. vat
£ 22.49 ex. vat
NZXT F120 RGB Duo 120mm PWM Fan 3 Pack with Controller White
- 3 x 120mm Fans
- Fluid Dynamic Bearing
- 48.58 CFM Ariflow
- 1 x 4-pin PWM
QuickFind: 2192008
Mfr part code: RF-D12TF-W1
£ 99.99 inc. vat
£ 83.32 ex. vat
0% Interest offers available
Fractal Design Prisma AL-12 PWM 3P Computer case Fan 12 cm Black
- 120mm
- 7 Blade
- 4-pin
- PWM Support
QuickFind: 1896294
Mfr part code: FD-FAN-PRI-AL12PWM3P
£ 38.49 inc. vat
£ 32.07 ex. vat
Cooler Master MasterFan MF140 HALO² White Edition
- Larger Fan Blades
- Hybrid Frame Design
- Dual Loop ARGB LED Rings
- Improved Fan Controller IC
QuickFind: 1871144
Mfr part code: MFL-B4DW-16NP2-R2
£ 20.99 inc. vat
£ 17.49 ex. vat
CORSAIR iCUE LINK Slim Cable 200mm
- Expand your iCUE LINK ecosystem
- Flexible positioning options
- Passes digital signal and current up to 7 amps
- 2 Year Warranty
QuickFind: 1870637
Mfr part code: CL-9011123-WW
£ 12.99 inc. vat
£ 10.82 ex. vat
CORSAIR iCUE LINK System Hub
- Connect up to 14 iCUE LINK devices
- Auto Detection and Installation
- Compact Design for Easy Installation
- Reduce Cabling Complexity
QuickFind: 1870621
Mfr part code: CL-9011116-WW
£ 49.98 inc. vat
£ 41.65 ex. vat
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What Size Case Fans Do I Need For My PC?
We stock several sizes of case fans and PC cooling fans here at Ebuyer. However, most computer cases nowadays only support 120mm and 140mm case fans. These strike a good balance between cooling and acoustic performance. So, if you're looking to build a brand-new system, you can safely rule out a lot of the smaller sizes of case fans, like 60mm and 80mm. For the most part, they're for older desktops and rack-mounted servers. A few small form-factor cases still use them, too.
For a small fan to move the same amount of air as a large fan in the same amount of time, it must spin at a faster, louder revolutions-per-minute (RPM). If you've ever heard a gaming laptop running at full tilt, then you'll know just how loud small, high-RPM fans can get. So, the larger the fan, the slower you can run it while still achieving decent cooling performance. Going all-in on 140mm case fans, as opposed to 120mm case fans, is worth it if you want the quietest system possible. This is important if you're, say, a streamer who doesn't want any background noise picked up by their microphone.
How Many Case Fans Do I Need?
As a rule of thumb, the more power-hungry your computer's hardware, the more case fans and PC cooling fans you'll want. Your everyday office desktop PC, one with a power-sipping chip and no dedicated graphics card, doesn't exactly need a slew of case fans to keep adequately cool. On the contrary, it wouldn't be the wisest move to equip a powerful, high-wattage gaming PC with a lone exhaust fan.
Most computer cases include at least one case fan, usually mounted toward the rear to exhaust hot air produced by the processor. Those building a gaming rig will ideally want another two case fans in the front to channel fresh, cool air over the CPU and GPU. Of course, this is just a starting point. You can always add more case fans to meet the demands of your hardware.
That said, you shouldn't focus too much on the number of case fans, but rather how they're positioned in your case for optimal cooling performance. Go overboard and install too many case fans and they'll all work against each other, blowing air in any which direction without properly cooling the hardware itself. In other words, more case fans don't necessarily equate to better cooling.
Instead, what you should strive for is airflow with a strong sense of directionality. As covered on the computer cases page, you want what's known as a 'push-pull' configuration. This is where intake case fans 'pull' air through the case's panels, dust filters, radiators, and so on, and exhaust fans 'push' hot air out of the case, thereby ensuring a constant flow of air is passing in-and-out of the case and its components.
Airflow Fans vs Static Pressure Fans
Broadly speaking, there are two types of case fans: airflow fans and static pressure fans. Corsair offer both 'AF' airflow fans and 'SP' static pressure fans, for example.
An airflow fan's objective is to move the most amount of air in the shortest amount of time. How much air a fan can move, or displace, is measured in cubic-feet-per-minute (CFM). And if you look at the spec-sheet of an airflow fan, its CFM will more than likely be greater than a static pressure fan's. However, an airflow fan won't displace air with much force. When something's blocking its path - an all-in-one water cooler's radiator, for example - it will struggle to force air through it. A static pressure fan, on the other hand, is stronger and better equipped to force air through a point of resistance.
As a result, you want to mount static pressure fans to heatsinks and radiators, and airflow fans to your case's intakes and exhausts. More and more computer cases are being designed with high-airflow mesh panels, offering very little resistance for airflow fans. A bulky drive cage or even a dust filter can be enough to lessen the effectiveness of airflow fans, in which case you'd be better off with static pressure fans.
Case Fans at Ebuyer
Here at Ebuyer, we stock a wide range of case fans and PC cooling fans from the industry's best brands, including Corsair, Cooler Master, and Be Quiet. Check out the rest of our PC cooling and modding gear and spread the cost of your purchase with our flexible finance offers. If you want your new case fans and cooling fans by tomorrow, next-day delivery is also available.