10 Best 140mm External Cooling Fan Of 2026
140mm External Cooling Fan — Reviews, Recommendations & Updated Buying Guide September 2026
Excefore PC Fans 140mm 5V 2 In 1
おすすめの理由
Thermalright TL-C14C-S Case Fan
おすすめの理由
Thermalright TL-C14CW-S CPU Fan
おすすめの理由
Thermalright TL-C14C CPU Cooling
おすすめの理由
ARCTIC P14 Pro Reverse – 3 Pack
おすすめの理由
ARCTIC P14 Slim PWM PST - Case Fan
おすすめの理由
Thermalright TL-C14C-S X3 CPU Fan
おすすめの理由
Thermaltake Ring 14 High Static
おすすめの理由
P14025 14cm 140mm Fan 140x140x25mm
おすすめの理由
Noctua NF-P14s redux-1500 PWM
おすすめの理由
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10 Best 140mm External Cooling Fan Of 2026
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Excefore PC Fans 140mm 5V 2 In 1 Desk USB Cooling Fan 3-Degree Speed Switch Portable Home Office Fans Metal USB Powered Cooling Fan for Laptop/TV Box/AV cabint/PS4/Router
Thermalright TL-C14C-S Case Fan High Performance Cooler Fan 1500RPM,4-PIN PWM Cooling Fan with S-FDB Bearing (140mm, ARGB)
Thermalright TL-C14CW-S CPU Fan 140mm ARGB Case Cooler Fan, 4pin PWM Silent Computer Fan with S-FDB Bearing Included, up to 1500RPM Cooling Fan
Thermalright TL-C14C CPU Cooling Fan 140mm, PWM Silent Computer Cooler With 1500RPM Speed, Black (TL-C14C)
ARCTIC P14 Pro Reverse – 3 Pack – 140 mm Premium Fan with Reverse Airflow, PWM Fan with Y Cable Splitter, 400-2650 RPM, 0 RPM <5% PWM, hydrodynamic Bearing, 4-Pin - Black
ARCTIC P14 Slim PWM PST - Case Fan, 140 mm, with PWM Sharing Technology (PST), Pressure-optimised, Quiet Motor, Computer, Extra Slim, 150-1800 RPM - Black
Thermalright TL-C14C-S X3 CPU Fan, 140mm ARGB Case Cooler, 4pin PWM Silent Computer Fan with S-FDB Bearing,3-Pack Fans,up to 1500RPM PC Cooling
Thermaltake Ring 14 High Static Pressure 140mm Circular Led Case Radiator Cooling Fan Cl-F039-PL4OR-A Orange
P14025 14cm 140mm Fan 140x140x25mm DC5V 12V 24V 2pin Cooling for Computer case Power Router Inverter(5V Sleeve 1500rpm)
Noctua NF-P14s redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm, Grey) | High Airflow, Low Noise, 25mm Thick Fan for PC and Electronics Cooling Streamlined Package 1500rpm 4-Pin PWM
購入ガイド: 140mm External Cooling Fan
📋 目次
1What RPM range is ideal for a 140mm external cooling fan?
Look for fans with 1000-2500 RPM for balanced airflow and noise levels. Higher RPMs increase cooling power but also noise, while lower RPMs are quieter but may not cool as effectively in high-performance builds.
2Does the number of blades affect performance and noise?
Typically, 5-7 blades offer a good balance of airflow and noise. More blades can reduce turbulence and noise but may add weight and cost, while fewer blades can be louder and less efficient at higher speeds.
3What should I look for in a fan's thermal design?
Fans with heatsinks or copper tubing in the motor housing run cooler and last longer. These features help prevent overheating during extended use, which is crucial for high-load systems like gaming or mining rigs.
4Is PWM control worth the extra cost?
Yes — PWM (Pulse Width Modulation) allows for precise speed control via the motherboard, improving both cooling efficiency and noise management. Non-PWM fans rely on voltage control, which is less efficient and can cause fan speed fluctuations.
5What noise level should I expect from a 140mm fan?
Expect noise levels between 15-35 dBA, depending on RPM and design. Fans with ball bearings and optimized blade shapes tend to be quieter, while sleeve bearings may produce more noise over time and have shorter lifespans.
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