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NoctuaNF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)

NoctuaNF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)

Q: This might be a dumb question, but what is the operating voltage? Don't see a rating anywhere in the description or reviews and hoping it's 12VDC.

12 volts DC. 3 pin connector but comes with a 2 pin adapter and extension cables.

Q: Have anyone used this to replace the 35 mm assist fans on an asus sabertooth z87?

I have it in my Asus Sabertooth Z170 S and it fits just fine! (just remove the two Anti-Vibration Pads in contact with the TUF Armor to be able to close the lid). Take into consideration that in my version of the Sabertooth, the assistant fan position is vertical, inside the TUF Thermal Armor, between the IO Shield and the heatsink VRM, and works as an intake fan, to blow fresh air into the motherboard. Every Sabertooth Assistant Fans are designed to work differently. I believe in your motherboard the fan is place horizontally, on Top of the TUF Thermal Armor. Also the fans needed for your Sabertooth Z87 had a mini 3 pin connector, my motherboard use 3 or 4 pin (regular size) connectors. Therefore the original assistant fan of the Sabertooth Z87 cannot be plugged in the Assist Fan 1 connector of my Sabertooth Z170 S. I know this because I was looking for the fans for my motherboard and buy the Z87 version by mistake, couldn't use it, so I buy the 40mm Noctua, and it works great! Really improved the temperature inside my case. Also my motherboard use 40mm fans. I'm not sure of the Z87 assistant fans size, but putting the two of them together, are exactly the same size, only thing adding up to the size variation, are the Noctuas silicone anti vibrations pads, that can be removed. Hope this helps even a little bit.

Q: What is the sound decible rating

http://noctua.at/en/products/fan/nf-a4x10-flx/specification 17.9

4.8/5

Product ID: 260040000

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Details

Product dimensions
40L x 40W x
Brand
Noctua
Power connector type
3-Pin
Voltage
12 Volts
Cooling method
Fan

⏳>150,000 hours MTTF reliability

🌀4500/3700 RPM dual-speed control

🔇Ultra-quiet max 17.9 dB(A)

Frequently Bought Together

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

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Noctua NF-A4x20 FLX Computer Case Fan - Cooling Components (Computer Case, Fan, 4 cm, 3700 RPM, 5000 RPM, 4400 RPM)

Description

🌀 Quiet power that keeps your gear cool and your workspace zen

PLUG PLAY VERSATILITY - Comes with extension cable, OmniJoin adaptor, and screws for seamless integration
PRECISION AIRFLOW MASTERY - Flow Acceleration Channels boost cooling efficiency without noise compromise
TAILORED SILENCE OR POWER - Dual-speed FLX control lets you choose between max airflow or whisper-quiet operation
VIBRATION FREE PERFORMANCE - Anti-vibration mounts included for ultra-smooth, noise-free running
BUILT TO LAST BEYOND EXPECTATIONS - Award-winning design with industry-leading >150,000 hours mean time to failure

The Noctua NF-A4x10 FLX is a premium 40x40x10mm 12V 3-pin fan designed for ultra-quiet, high-performance cooling. Featuring dual-speed operation (4500 or 3700 RPM), advanced acoustic optimization, and Flow Acceleration Channels, it delivers superior airflow with minimal noise (max 17.9 dB(A)). Ideal for 3D printers, NAS, routers, and other compact devices, it includes anti-vibration mounts, extension cables, and adaptors for easy installation. With an exceptional >150,000 hours MTTF, it guarantees long-lasting, reliable cooling.

Specifications

Brand	Noctua
Product Dimensions	4 x 4 x 1 cm; 50 g
Item model number	NF-A4x10
Manufacturer	Noctua
Series	NF-A4x10 FLX
Color	Brown
Voltage	12 Volts
Are Batteries Included	No
Item Weight	50 g

Have a Question? See What Others Asked

what is the CFM for this fan?

This might be a dumb question, but what is the operating voltage? Don't see a rating anywhere in the description or reviews and hoping it's 12VDC.

Have anyone used this to replace the 35 mm assist fans on an asus sabertooth z87?

What is the sound decible rating

Reviews

4.8

All from verified purchases

S**F

Noctua NF-A4x10 – The Quiet Upgrade Every Ender 3 Pro Needs

I bought these fans as an upgrade for my Ender 3 Pro, and after installing them (along with the silent motherboard for stepper motor noise), my printer became almost completely silent. The difference is night and day. These fans are super high quality, and I absolutely love how quiet my setup is now. If you're tired of a noisy 3D printer, I can't recommend these fans enough!

4.01.2025

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12 interest-free installments with tabby

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TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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