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🌀 Stay cool, stay silent—power your projects with Noctua’s micro marvel!
The Noctua NF-A4x10 5V PWM is a premium 40x40x10 mm ultra-quiet fan designed for efficient cooling in compact setups. Featuring advanced Flow Acceleration Channels and Acoustic Optimization, it delivers up to 5000 RPM airflow at just 19.6 dB(A). Powered via 5V USB with PWM speed control and polarity protection, it’s perfect for Raspberry Pi cases, mini PCs, and other low-voltage applications. Included accessories like anti-vibration mounts and extension cables ensure easy installation and long-lasting performance backed by a 6-year warranty.
































| ASIN | B07DXS86G7 |
| Air Flow Capacity | 8.9 Cubic Metres Per Hour |
| Best Sellers Rank | 14,751 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,255 in Keyboards, Mice & Input Devices |
| Brand | Noctua |
| Compatible Devices | Desktop |
| Cooling Method | Air |
| Country Of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,069) |
| Included Components | Camera Body |
| Item Dimensions L x W x H | 40L x 10W x 40H millimetres |
| Item Weight | 80 Grams |
| Manufacturer | Noctua |
| Material | Fibre-glass reinforced PBT |
| Max Rotational Speed | 5000 RPM |
| Noise Level | 19.6 Decibels |
| Power Connector Type | 4-Pin |
| Product Warranty | 6 year manufacturer’s warranty |
| UPC | 841501110320 |
| Unit Count | 1.0 count |
| Voltage | 5 Volts |
D**D
Teeny USB powered quiet fan, perfect!
Purchased for a 3D printed project, works an absolute treat! So long as Noctua fans stay consistently great I'll be consistently brand loyal, nice and quiet with good airflow.
D**O
Great for a Raspberry Pi case!
I bought this fan as I wanted to use it as an extractor on a Raspberry Pi case - I needed something small, silent and low voltage so it could be run from the Pi's USB ports. This fan achieved all those goals and more! It came with a USB adapter, which left the cable pretty long - too long to go a few cm into a USB port on the side of a Pi - so I cut the wires and soldered the USB connector directly on to the wires leaving the fan housing - very simple to do thanks to the nice design from Noctua and it's happily doing its job of keeping a Raspberry Pi nice and cool. Obviously at 5v it doesn't have a lot of oomph, but for its size and how silent it is, it does move a good amount of air. Impressed and recommended for smaller projects such as Raspberry Pi based builds!
G**P
Best Cooling Fans you Can Buy
Best cooling fans you can buy. Used a lot of these fans of various size and voltage. Very quiet and efficient. Many connection cable options are provided for speed control or direct control together with low noise/vibration mounting pieces. Very long working life with sealed bearings and a six year Warranty. Highly recommended.
I**N
A itty-bitty tiny and quite fan
It's so small that it is cute, its very silent and works as any other Noctua fan (considering the size).
J**E
Really quiet
Its a shame these are so expensive, but then you get what you pay for. Super quiet and excellent build quality.
N**H
Nice usb powered external cooling.
I bought this fan as I am designing a 3D print external cooling solution for my Surface 7. In trials this fan is very quite and shifts a good amount of air. The Surface 7 is cooled somewhat in testing as planned. I made another one of these into a portable personal fan [just because] and that works well too. Make no mistake! This fan is usb 5V powered - not to be used inside a PC [from motherboard header etc] as these are 12V.
A**E
The king of fans!
If you've found yourself here, then you probably already know that when it comes to fans, Noctua ones are one of the best. They are fantastic quality and reliable and probably the most important part, quiet. They're normally drop in replacements, so it's easy to switch out a noisy fan to a noctua. As a premium product, they are expensive, so it's a balancing act.
D**G
Quality product
As you'd expect from Notus. Not the cheapest but also extremely good.
D**N
Increíble cómo algo tan pequeño puede mover tanto aire sin sonar como un mosquito enfadado. Lo he usado para sustituir el ventilador de serie de una impresora 3D y el cambio es brutal; ahora el silencio es casi total. Noctua nunca falla con la calidad de sus rodamientos.
F**A
Noctua NF-A4x10 5v PWM Fan In my opinion, these fans live up to their premium quality advertisement. Build quality is excellent, noise is very minimal, and the 40 millimeter depth allows for extra airflow. You may not enjoy the color but I'm confident you will enjoy the quality and performance. Used to cool to steering wheel pedal sets they perform quite well and are nearly silent. Cooling is very efficient. These can be mounted with screws or with the included rubber grommets. Please bear in mind these are for 5 volt current not 12 volt. They will work with both PWM or direct voltage applications
N**O
Ok
M**O
Ventola molto silenziosa. Arriva con una ricca fornitura di cavi ed accessori per la sua installazione. La sto adoperando per raffreddare un hotspot su base Raspberry Pi 3 Model B Plus, che si sa scalda molto. Bene riesco a mantenere una temperatura compresa tra i 28° ed i 36°. Prova superata a pieni voti. Consigliata.
S**S
The added USB cable saved me a lot of headache. Really good documentation on the cable colors. All in all a very good fan :)
Trustpilot
2 months ago
1 month ago