10 Best Silent 40mm Blower Fan for 2025

Noctua

• Premium quiet fan, 40x40x10 mm, 12V, 3-pin Molex, 4500/3700 RPM, max. 17.9 dB(A), >150,000 h MTTF
• Award-winning 40x10mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
• Ideal replacement for noisy or broken 12V 4cm fans in 3D printers, DVRs, NAS, switches, routers, other network and storage devices, etc
• 3-pin 12V FLX version can be run 4500 or 3700 rpm using the supplied Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
• Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

Noctua

• Premium quiet fan, 40x40x20 mm, 12V, 3-pin Molex, 5000/4400/370 RPM, max. 14.9 dB(A), >150,000 h MTTF
• Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
• 40x20mm size ideal for 1U applications or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs
• Comes with free anti vibration brackets, fan screws, Extension Cable and Omnijoin adaptor kit to to use with embedded proprietary connections
• 3-pin FLX version provides 5000/4400/3700rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
• Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

WINSINN

• ✔️️Hydraulic Bearings 4010 Fan - Quiet version
• ✔️High quality Hydraulic bearings, Better than Oil bearings, More stable and Long life, suitable for continuous work. The life expectancy is about 45,000 hours.
• ✔️️Rated voltage: DC 24V
• ✔️️Size: 40x40x10mm
• ✔️Made by WINSINN.

Innovateking-EU

• Brushless DC Cooling Fan, Rated Voltage: DC 12V, Current: 0.08A;
• Speed: 7200RPM, Noise: 22dBA; Air Flow: 2.8CFM
• Bearing Type: Hydraulic Bearing. Dimensions: 40 x 40 x 10mm(1.6 x 1.6 x 0.36inch);
• Connector: 2 Terminal Connector with 2pin-ph2.54; Wiring: red wire is connected to positive pole, black wire is connected to negative pole;
• Polarity Protection: 1. When Vcc is reversely connected to GND, it does not conduct.(Open circuit when Vcc andamp; GND are exchanged) 2. When Vcc is reversely connected to GND, 5 seconds pull out will not burn the board.

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)

NoiseBlocker

• Fans
• Air Cooling

Cavabien

• Perfect OEM replacement parts, work with Creality CR-10 CR-10S S4 S5, not use for Ender-3, Ender 3 Pro
• Size: About 40x40x10mm/ 1.57x1.57x0.39 inch; Cable Length: about 1 meter/ 39.37 inch
• Operation Voltage: DC 12V; Material: Plastic
• Type: blowers, Circle
• Package included: 1PC 12V 4010 Fan and 1PC 12V Circle Fan

WINSINN

• ✔️️Hydraulic Bearings 4010 Fan - High Speed version
• ✔️High quality Hydraulic bearings, Better than Oil bearings, More stable and Long life, suitable for continuous work. The life expectancy is about 45,000 hours.
• ✔️️Rated voltage: DC 24V
• ✔️️Size: 40x40x10mm
• ✔️Made by WINSINN.

Eewolf

• Use For :Creality Ender 3
• Material: Plastic
• Operation Voltage: DC 24V
• Package included: 1PC 24v 4010 Fan and 1PC 24V Circle Fan
• Please feel free to contact us if there is any problem for the product. Thank you.

WINSINN

• ✔️️Dual ball bearings Bearings 4010 Fan - High Speed version, More 5 x Air Guide Parts :))
• ✔️High quality Dual ball bearings, More stable and Long life, suitable for continuous work. Use time can 24 hours / day. The life expectancy is about 60,000 hours. No maintenance required. But Lubricating oil can further reduce noise.
• ✔️️Rated voltage: DC 5V
• ✔️️Size: 40x40x10mm
• ✔️️Made by WINSINN