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🌀 Small Fan, Big Chill — Stay Cool, Stay Ahead
The Noctua NF-A4x20 FLX is a premium 40mm computer case fan engineered for high-performance cooling in compact spaces. Featuring a maximum speed of 4400 RPM and ultra-quiet operation at 14.9 dB, it delivers efficient airflow of 9.4 m³/h while maintaining whisper-quiet noise levels. Designed with advanced acoustic optimization and flow acceleration channels, this fan is perfect for 1U servers, network devices, and small form factor PCs. The package includes anti-vibration mounts and versatile adapters, ensuring easy installation and compatibility across multiple devices.
| Air Flow Capacity | 9.4 Cubic Meters Per Hour |
| Asin | B072JK9GX6 |
| Best Sellers Rank | #40,720 in Computers (See Top 100 in Computers) #330 in Computer Case Fans |
| Brand Name | Noctua |
| Compatible Devices | Desktop, Server, Router, Switch |
| Cooling Method | Air |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,368) 4.8 out of 5 stars |
| Item Dimensions L X W X H | 40L x 40W x 20H millimeters |
| Manufacturer | Noctua |
| Material Type | Plastic |
| Maximum Rotational Speed | 4400 RPM |
| Model | NF-A4x20 FLX |
| Noise Level | 14.9 Decibels |
| Number Of Items | 1 |
| Part Number | NF-A4x20 FLX |
| Power Connector Type | 3-Pin |
| Unit Count | 1 Count |
| Upc | 841500110116 |
| Voltage | 12 Volts |
User
Nice cooler for sff aystem
Its nice for the small pc
User
Silence
After replacement in switch, it became silent
User
High quality
Very good performance and quiet. I'm using it on 3D printer to cool E3D V6 hotend.
User
Super silent
Super silent, buy it
User
Not loud at all. Wonderful.
I used this to replace the fan in my hub. Keeps things cool.
User
Quiet; must have for a USG pro in your home!
I have fitted these, blowing, into my Ubiquiti UniFi USG-Pro-4 and I can report the high pitch whine is now gone. Pretty handy when you don't have a rack out of the way of habitual areas!Only been installed an hour but so far so good, and I chose to use the noise suppression mounts, they aren't recommended for this application but I wanted to try it and the resonance from the metal cover is now much more subtle. Running these fans without a cover show they are actually virtually silent, but obviously, it's not recommended to run this device with the cover off (airflow etc)!
User
Very quiet fan
Fan was so quiet I had to visually check to make sure it was spinning. It comes with both a low noise adapter and an ultra low noise adapter. I can't imagine needing them since it is barely audible at full speed. Certainly the quietest fan this size that I've ever encountered.
User
Excelente ventilador
Desde el empaquetado del producto se siente la calidad, viene con todos sus accesorios, se siente de muy buena calidad.Es silencioso y tiene buen caudal de aire.Lo usé para reemplazar el ventilador de un XVR Dahua, el ventilador original es de 2 pines, este ventilador noctua viene con sus accesorios para poder hacerlo de 3 pines a 2 pines.Los resultados fueron demasiado superiores al ventilador original, mucho más caudal de aire y sobre todo muy silencioso.Estoy muy satisfecho con la compra.
Trustpilot
2 weeks ago
2 weeks ago