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.

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.

What is the sound decible rating

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

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🌬️ Silence Meets Power: Cool Smarter, Not Louder

COMPACT POWERHOUSE - Small 40x40x10 mm size fits seamlessly into tight spaces like 3D printers, NAS, and network devices without compromising performance.
AWARD WINNING DESIGN - Benefit from Noctua’s patented Flow Acceleration Channels and Advanced Acoustic Optimization for superior airflow and minimal noise.
DUAL SPEED FLEXIBILITY - Switch effortlessly between 4500 and 3700 RPM using the included low noise adapter to balance airflow and silence.
WHISPER QUIET PRECISION - Experience near-silent cooling with noise levels as low as 17.9 dB, perfect for focused workspaces and home offices.
COMPLETE INSTALLATION KIT - Includes anti-vibration mounts, extension cables, and OmniJoin adapters for hassle-free, vibration-free setup tailored to your device.

The Noctua NF-A4x10 FLX is a premium 40x40x10 mm 12V 3-pin fan designed for ultra-quiet, efficient cooling. With adjustable speeds of 3700 and 4500 RPM, it delivers up to 8.2 CFM airflow at a whisper-quiet 17.9 dB noise level. Engineered with award-winning aerodynamic features and bundled with a full accessory kit, it’s the ideal replacement fan for compact electronics like 3D printers, NAS, and network devices, ensuring long-lasting, vibration-free performance.

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Manufacturer	Noctua
Part number	NF-A4x10
Item Weight	50 g
Product Dimensions	4 x 4 x 1 cm; 50 g
Is Discontinued By Manufacturer	No
Material	Copper
Voltage	12 Volts
Airflow	8.2 CMPH
Noise Level	17.9 dB
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	40 x 40 x 10 mm

Noctua NF-A4x10 FLX, プレミアム静音ファン, 3-Pin接続 (40x10mm, ブラウン)

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Noctua NF-A4x10 FLX, プレミアム 静音 ファン, 3-Pin接続 (40x10mm, ブラウン)

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions

Noctua NF-A4x10 FLX, プレミアム静音ファン, 3-Pin接続 (40x10mm, ブラウン)