Top 9 40mm Fan 12V Quiet – Computer Case Fans

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1. Noctua

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Brown, Noctua NF-A4x10 FLX, 3-Pin 40x10mm, Premium Quiet Fan

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Noctua #ad - Ideal replacement for noisy or broken 12v 4cm fans in 3D printers, switches, other network and storage devices, DVRs, NAS, routers, etc. Premium quiet fan, 4500/3700 rpm, 12v, >150, 3-pin molex, max.

Includes anti-vibration mounts, Low-Noise Adaptor, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers. Award-winning 40x10mm a-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance. 17. 9 dba, 40x40x10 mm, 000 h MTTF. 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.
BrandNoctua #ad
ManufacturerNoctua #ad
Height1.57 Inches
Length1.57 Inches
Weight0.35 Pounds
Width0.39 Inches
Part NumberNF-A4x10 FLX
ModelNF-A4x10 FLX

2. MakerFocus

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DVR and Other Small Appliances Series Repair Replacement, 40mm 12 Volt Fan 0.08A DC Mini Quiet Cooling Fan 40X40X10mm with 28cm Cable for 3D Printer, MakerFocus 4pcs 3D Printer Fan 12V

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MakerFocus #ad - Oil bearing 30000 hours; certification: CE, UL, CUL. Working current: 008a; air flow: 5. 75±10% cfm; power: 096w; cable length: 280mm. Bearing is high precision, long life and low noise. Size: 40 mm x 40 mm x 10 mm; working Voltage: DC 12V. Temperature of usage environment: -10℃ to +70℃.
BrandMakerFocus #ad
ManufacturerMakerFocus #ad
Height0.39 Inches
Length1.57 Inches
Weight0.13 Pounds
Width1.57 Inches
Part Number50IGRFWL2611N

3. Noctua

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Noctua NF-A4x20 PWM, Premium Quiet Fan, Brown, 4-Pin 40x20mm

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Noctua #ad - Includes anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers.

4-pin pwm version for automatic speed control via 4-pin PWM fan headers, 5000rpm maximum speed 4400rpm with supplied Low-Noise Adaptor. Award-winning a-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance. Or other devices such as DVRs. 40x20mm size ideal for 1u servers or replacing fans in network and storage equipment routers, switches, NAS etc. 5000 rpm, 40x40x20 mm, 000 h MTTF. 14. 9 dba, 12v, >150, max. Premium quiet fan, 4-pin pwm, max.
BrandNoctua #ad
ManufacturerNoctua #ad
Height0.79 Inches
Length1.57 Inches
Weight2.2 Pounds
Width1.57 Inches
Part NumberNF-A4x20 PWM
ModelNF-A4x20 PWM

4. WINSINN

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WINSINN 40mm Fan 12V Hydraulic Bearing Brushless 4010 40x10mm, High Speed Pack of 5Pcs

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WINSINN #ad - High quality hydraulic bearings, Better than Oil bearings, more stable and Long life, suitable for continuous work. Hydraulic bearings 4010 Fan - High Speed version. The life expectancy is about 45, 000 hours. Rated voltage: DC 12V. Size: 40x40x10mm. Made by winSINN.
BrandWINSINN #ad
ManufacturerWINSINN Technology Ltd #ad
Height2.2 Inches
Length4 Inches
Width2.4 Inches
Part Number4010 Fan 12V

5. MakerHawk

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2pcs Brushless DC Cooling Fan 40mm x 40mm x 10mm 4010 12V 0.08A 3D Printer Fan Hydraulic Turbo Cooling Fan with XH2.54-2P Wire for 3D Printer

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MakerHawk #ad - We have a strong after-sales service team: as long as you have any questions about the product, we will resolve your issue immediately if received your email, your satisfactory purchase experience is our greatest hope! How to email us? Please click "MakerHawk-US" and click "Ask a question" to email us! Looking forward to your consultation! Connector: 2 terminal connector with 2pin-ph2.

54; wiring: red wire is connected to positive pole, black wire is connected to negative pole;. Hydraulic bearings have a larger oil storage space than oil-impregnated bearings and have a unique loop-back oil supply circuit.

Super quiet: this fan will not make you feel uneasy during they are working, but also a quiet experiment environment for you. Hydraulic bearings are based on oil-impregnated bearings. Rated voltage: dc 12v, current: 008a; speed: 7200rpm, noise: 22dba; air flow: 2. 8cfm。 dimensions: 40 x 40 x 10mm1. 6 x 1. 6 x 036inch;.
BrandMakerHawk #ad
ManufacturerMakerHawk #ad
Height0.39 Inches
Length1.57 Inches
Weight0.05 Pounds
Width1.57 Inches
Part Numberle

6. YLKOVA

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And Other Small Appliances Series Repair Replacement, DVR, 6PCS 3D Printer Fan 12V 0.08A DC Mini Quiet Cooling Fan 40X40X10mm with 28cm Cable for 3D Printer

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YLKOVA #ad - Parameter voltage: dc 12v, temperature of usage environment: -10℃ to +70℃. Applicationused for cooling on hot end - 3d printers, dvr or other cooling needs. Besides, we prodive 12- month warranty.

Variety of size40mm fan - size: 40 mm x 40 mm x 10 mm 1. 57 inch x 1. 57 inch x 039 inch; cable length: 280 mm 11. 02 inch. Durablewith high performance, ul, long life and low noise. Quality assurance the copper jacket of the our fan contains oil and has a lifespan of 30, 000 hours. Air volume: 5. 75±10% cfm; rotational speed: 5600±10% r/min; Wind blade diameter: 36 mm. If the noise is too big and you want the fan to be muted, please connect a 47 ohm resistor in series with the circuit to adjust the voltage to 12 V 005 a. Noise: 26 dba; certification: CE, CUL. Connector: 2. 54-2p connector. When you use them, working current: 008a, motor Power: 0
BrandYLKOVA #ad
ManufacturerZhanoushangmao #ad
Height0.39 Inches
Length1.57 Inches
Width1.57 Inches
Part NumberZhanoushangmao

7. WINSINN

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WINSINN Dual Ball Bearings 40mm Fan Brushless Cooling 12V 4010 40mm10mm (Pack of 2Pcs

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WINSINN #ad - High quality dual ball bearings, 000 hours. But lubricating oil can further reduce noise. High quality Dual ball bearings, suitable for continuous work. Made by winSINN. High speed - dual ball bearings 4010 Fan. The life expectancy is about 60, More stable and Long life, suitable for continuous work. Use time can 24 hours / day. Rated voltage: DC 12V. The life expectancy is about 60, More stable and Long life, 000 hours. No maintenance required. Use time can 24 hours / day. Size: 40*40*10mm. But lubricating oil can further reduce noise. No maintenance required.
BrandWINSINN #ad
ManufacturerWINSINN #ad
Part NumberDB401012F2P

8. Twinkle Bay

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Avanexpress 40x20mm Cooling Fan, 40mm x 20mm Pack of 2, Replacement for Brushless DC EFB0412VHD Cooling Fan High Speed Ball Bearing DC 12V

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Twinkle Bay #ad - Dimensions: 40x40x20mm / 1. 57x1. 57x 079". Rated current: 018a, rated Power: 2. 16w. Rotation speed: 9000RPM Revolutions per minute. Length of wire:13cm / 5. 12''. Airflow: 12cfm Cubic feet per minute.
BrandTwinkle Bay #ad
ManufacturerTwinkle Bay #ad
Height0.98 Inches
Length2.36 Inches
Weight0.16 Pounds
Width2.36 Inches
Part Number4328441516

9. Security-01

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2packs 40mm x 40mm x 10mm 4010 12V 0.15A Ball Bearing Brushless DC Cooling Fan 2pin AB4010M12 UL TUV

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Security-01 #ad - Connector: 2 terminal Connector with 2pin-xh2. 54mm. Ul tuv approved certification. Bearing type: dual ball bearing, speed: 6200 RPM, Air Flow : 6. 86 cfm;. Package content : 2 x DC Brushless Cooling Fan;. Dc brushless cooling fan, rated voltage: DC 12V, Current: 013a;.
BrandSecurity-01 #ad
ManufacturerHK #ad
Height0.5 Inches
Length5 Inches
Weight0.02 Pounds
Width4 Inches
Part NumberAB4010M12
ModelLYSB01CZFUOD0-ELECTRNCS