10 Best 40mm Rgb Fan for 2025

ARCTIC

• INNOVATIVE DESIGN ENABKES QUIET AND EFFICIENT VENTILATION: The innovative design of the fan blades improves the air flow and facilitates a highly efficient ventilation. The impeller was designed with a focus on minimzing the noise level yet delivering the desired airflow and pressure.
• TWO WAY INSTALLATION: Blow warm air out of the case. Draw cool air into your case.
• LONG SERVICE LIFE: The Fluid Dynamic Bearing comes with an oil capsule that avoids lubricant leakage. Thus this bearing is as quiet as a sleeve bearing but comes with a significantly higher service life.
• 2,000 RPM @12 V / Max. Airflow 31 CFM (52.7 m³/h)

ARCTIC

• INNOVATIVE DESIGN ENABKES QUIET AND EFFICIENT VENTILATION: The innovative design of the fan blades improves the air flow and facilitates a highly efficient ventilation. The impeller was designed with a focus on minimzing the noise level yet delivering the desired airflow and pressure.
• PERFECT CASE FAN REGULATION WITH PWM: The PWM function allows the motherboard to run the fan precisely at its necessary speed. This guarantees the required cooling and minimizes the noise level.
• TWO WAY INSTALLATION: Blow warm air out of the case. Draw cool air into your case.
• LONG SERVICE LIFE: The Fluid Dynamic Bearing comes with an oil capsule that avoids lubricant leakage. Thus this bearing is as quiet as a sleeve bearing but comes with a significantly higher service life.
• 4-Pin PWM fan with standard case.

ARCTIC

• INNOVATIVE DESIGN ENABLES QUIET AND EFFICIENT VENTILATION: The innovative design of the fan blades improves the air flow and facilitates a highly efficient ventilation. The impeller was designed with a focus on minimzing the noise level yet delivering the desired airflow and pressure
• PERFECT CASE FAN REGULATION WITH PWM: The PWM function allows the motherboard to run the fan precisely at its necessary speed. This guarantees the required cooling and minimizes the noise level
• PWM SHARING TECHNOLOGY (PST) LOWERS NOISE: If you want to improve the cooling efficiency of your computer you get several case fans working in parallel. But what does it help if they don't work together? The PST assures that all of your fans listen to one control signal
• LONG SERVICE LIFE: The Fluid Dynamic Bearing comes with an oil capsule that avoids lubricant leakage. Thus this bearing is as quiet as a sleeve bearing but comes with a significantly higher service life
• TECHNICAL DATA: Fan speed: 230–1350 RPM, Airflow: 53 CFM/90,1 m³/h, Noise Level: 0,3 Sone, Pin: 4-pin
• INNOVATIVE DESIGN ENABLES QUIET AND EFFICIENT VENTILATION: The innovative design of the fan blades improves the air flow and facilitates a highly efficient ventilation. The impeller was designed with a focus on minimzing the noise level yet delivering the desired airflow and pressure
• PERFECT CASE FAN REGULATION WITH PWM: The PWM function allows the motherboard to run the fan precisely at its necessary speed. This guarantees the required cooling and minimizes the noise level
• PWM SHARING TECHNOLOGY (PST) LOWERS NOISE: If you want to improve the cooling efficiency of your computer you get several case fans working in parallel. But what does it help if they don't work together? The PST assures that all of your fans listen to one control signal
• LONG SERVICE LIFE: The Fluid Dynamic Bearing comes with an oil capsule that avoids lubricant leakage. Thus this bearing is as quiet as a sleeve bearing but comes with a significantly higher service life
• TECHNICAL DATA: Fan speed: 230–1350 RPM, Airflow: 53 CFM/90,1 m³/h, Noise Level: 0,3 Sone, Pin: 4-pin

Noctua

• Premium quiet fan, 120x120x25mm, 5V, 4-pin PWM, 1900 RPM, max. 21.4 dB(A), >150,000 h MTTF
• Next-generation 120x25mm A-series design provides unprecedented quiet cooling performance, ideal for CPU coolers and watercooling radiators
• 5V 4-pin PWM versio with polarity protection for 5V applications with PWM speed control
• USB power adaptor cable allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones
• Includes anti-vibration mounts, fan screws, extension cable and OmniJoinTM adaptor set for connection to proprietary fan headers

ELUTENG

• [Mini USB Fan] 40mm USB fan with 3 degree speed switch, mini size and super light design, perfect for DIY cooling and narrow place, protect your devices and expand service life
• [L/M/H Switch] Voltage: 3.5/4.2/5V; Air volume: 3.5/3.88/4.4 CFM, Rotating speed: 4000/4600/5300 RPM, choose suitable speed level according to different cooling needs
• [Support Devices] USB cooling fan perfect for ventilation of VR glasses/TV box/Raspberry pi/Router/Small PC Case and other small electronic equipment
• [5V USB] USB powered, allow you to use it in any places with USB power supply, perfect for Home/Office/Business trip, very convenient
• [Top Quality] Metal grill on front side, protect cable and your hand; High quality bearings, durable; 100cm USB cable length, meet connecting needs

GeeekPi

• Ice Tower Structure;Easy to setup; Black ICE Tower Fan: B07ZD8V2VM ; Raspberry Pi 4 Case with ICE Tower Fan: B07ZDN6LSR;In addition, there are cases compatible with this tower cooler, a total of three colors, there must be one of them you like--Black:B07Y8FGMXL;Black and Clear:B07Y8DQ5ST;Varicolored:B07Y8GC6DB
• 5mm copper tube;Super heat dissipation
• Rated power 0.4W @5V, 0.08A
• Super Cool fan background light (Multicolor);DC 5V Power in (Can be powered by the Raspberry Pi)
• Assembling Video:https://www.youtube.com/watch?v=FciNotr6d6g ; https://www.youtube.com/watch?v=3Eiq7k7Sekc

AAB Cooling

• ✅ The 120mm fan operates at a constant speed of 1200 ± 10% at 12V. This allows for significant increase in efficiency.
• ✅ The airflow is up to 64,5 m³/h and the noise generated by the propeller is 13,6 dB, which makes it a very quiet and efficient fan in its class available on the market.
• ✅ Highly quiet case fan operation and 120x120x25 mm dimensions allow the fan to be mounted on the heatsink for efficient cooling of the processor instead of the loud noise of other fans from different manufacturers.
• ✅ The mounting is very simple - the Computer Fan is mounted on 4 screws, attached just like the standard, allows quick and easy replacement of the loud case fan.
• ✅ The modern FDB (Fluid Dynamic Bearing) with oil fill ensures quiet operation and extended lifespan up to 100,000 h.

Noctua

• High performance cooling fan 120x120x25mm, 12V, 4-pin PWM, max. 1700 RPM, max. 25.1 dB(A), >150,000 h MTTF
• Famous high end NF-P12 120x25 mm and 12V fan Over 100 awards and recommendations from leading international hardware websites and magazines and hundreds of thousands of satisfied users.
• Blade design optimized for pressure and outstanding quiet operation: high static pressure and high CFM for air CPU heat sinkers, water cooling radiators or low-noise frame ventilation.
• The high efficiency 4 pin and 1700 rpm PWM version supports automatic motherboard speed control for maximum flexibility: powerful airflow output when needed, virtually silent to a minimum.
• Slender redux Edition: proven Noctua quality at a very affordable price, wide range of optional accessories (anti-vibration feet, S-ATA adapters, Y-spliters, extension cables, etc.).

ARCTIC

• INNOVATIVE DESIGN ENABKES QUIET AND EFFICIENT VENTILATION: The innovative design of the fan blades improves the air flow and facilitates a highly efficient ventilation. The impeller was designed with a focus on minimzing the noise level yet delivering the desired airflow and pressure
• PERFECT CASE FAN REGULATION WITH PWM: The PWM function allows the motherboard to run the fan precisely at its necessary speed. This guarantees the required cooling and minimizes the noise level
• TWO WAY INSTALLATION: Blow warm air out of the case. Draw cool air into your case
• LONG SERVICE LIFE: The Fluid Dynamic Bearing comes with an oil capsule that avoids lubricant leakage. Thus this bearing is as quiet as a sleeve bearing but comes with a significantly higher service life
• 4-Pin PWM fan with standard case

GeeekPi

• Only for Raspberry Pi 4 Model B
• Compatible with ICE tower Fan (Note:ICE Tower Fan is not Included)
• Super Quiet 4010 RGB Fan (Fan size:40x40x10mm)
• Assembling Video: https://www.youtube.com/watch?v=WdHFCJJ2FdQ
• Package Includes:1 x 5-Layer Acrylic case,1 x 4010 Fan kit(screws and nuts),4x Aluminum Heatsinks, 1 x mini screw driver,1 x Anti-slipper pads