I need to control the speed using arduino (the arduino has a 500 hz pwm frecuency) can this fan handle this frequency for pwm or what it is?

You can change the PWM to FAST PWM for these applications on Arduino. Googalize "25k PWM Arduino code". The real issue is trying to find data specs on the PWM IC that Noctua uses. Googalize "Noctua PWM white paper" and you'll get all the info you need on their PWM specs. Target frequency is 25kHz but the acceptable range is 21kHz to 28kHz. GOOD LUCK.

Is there a 5vdc pwm temperature controller for this fan? been searching, but can't find.

No its controlled by the motherboard. I threw away the usb adapter cable, If it was used to power the fan, since usb is 5v, I would expect it to run at full speed. I used my fan on an NVIDIA NANO Single board computer

is there a usb version of the noctua 40x20 5v fan

No, there is no USB specific version available. But the kit does include a USB Type A to 4-pin female adapter cable.

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NF-A4x10 5V PWM

Product ID: 71150027

Details

Air Flow Capacity
8.9 Cubic Per
Brand
Noctua
Compatible Devices
Desktop
Cooling Method
Air
Material
Fibre-glass
Maximum Rotational Speed
5000 RPM

⚡5V USB-powered convenience

🔇Ultra-quiet 19.6 dB(A)

🌬️Max airflow 8.9 m³/h

COP 124300

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Description

🌬️ Stay cool, stay ahead—quiet power that fits your hustle.

BUILT TO LAST - Over 150,000 hours MTTF backed by a 6-year warranty—reliability that keeps your gear cool and your mind at ease.
COMPACT POWERHOUSE - Small 40x40x10mm size packs up to 5000 RPM for efficient cooling in tight spaces.
PRECISION PWM CONTROL - 4-pin PWM lets you fine-tune fan speed for optimal performance and energy efficiency.
WHISPER QUIET COOLING - Experience premium airflow at a barely-there 19.6 dB—because your focus deserves silence.
UNIVERSAL USB COMPATIBILITY - Plug & play with USB power adaptors—perfect for modern setups and on-the-go power banks.

The Noctua NF-A4x10 5V PWM is a premium, ultra-quiet 40x40x10mm fan designed for efficient cooling with a max speed of 5000 RPM and airflow of 8.9 m³/h. Featuring advanced acoustic optimization and Flow Acceleration Channels, it operates at a whisper-quiet 19.6 dB(A). Powered via USB with a 4-pin PWM connector, it offers precise speed control and compatibility with modern devices. Built for longevity with over 150,000 hours MTTF and a 6-year warranty, it’s the go-to choice for professionals seeking reliable, silent cooling in compact spaces.

Specifications

ASIN	B07DXS86G7
Air Flow Capacity	8.9 Cubic Meters Per Hour
Best Sellers Rank	#114 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (1,135)
Included Components	NF-A4x10 5V PWM
Item Dimensions L x W x H	1.57"L x 1.57"W x 0.39"H
Item Weight	80 Grams
Manufacturer	Noctua
Material Type	Fibre-glass reinforced PBT
Maximum Rotational Speed	5000 RPM
Model	NF-A4X10 5V PWM
Noise Level	19.6 Decibels
Number of Items	1
Part Number	NF-A4X10 5V PWM
Power Connector Type	4-Pin
UPC	841501110320
Unit Count	1.0 Count
Voltage	5 Volts
Warranty Description	6 year manufacturer’s warranty

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COP 124300

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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