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🌀 Elevate your gear’s cool factor—silence and power in perfect harmony!
The Noctua NF-A4x20 FLX is a premium 40x40x20mm quiet fan engineered for professional-grade cooling in compact spaces. Featuring advanced aerodynamic design, ultra-low noise levels (max 14.9 dB(A)), and flexible 3-speed control, it’s the go-to upgrade for network equipment, NAS, and other sensitive devices demanding silent, reliable airflow.
| ASIN | B071J8CZP9 |
| Best Sellers Rank | #16,904 in Computers ( See Top 100 in Computers ) #88 in Computer Case Fans |
| Brand | Noctua |
| Brand Name | Noctua |
| Compatible Devices | Desktop, Laptop |
| Compatible devices | Desktop, Laptop |
| Cooling Method | Air |
| Cooling method | Air |
| Customer Reviews | 4.8 out of 5 stars 4,744 Reviews |
| Global Trade Identification Number | 09010018100112 |
| Item Dimensions L x W x H | 20L x 40W x 40H millimeters |
| Item Weight | 50 Grams |
| Manufacturer | Noctua |
| Material Type | Fibre-glass reinforced PBT |
| Maximum Rotational Speed | 3500 RPM |
| Noise Level | 14.9 Decibels |
| Power Connector Type | 3-Pin |
| Power connector type | 3-Pin |
| Product dimensions | 20L x 40W x 40H millimeters |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
R**X
Amazing silent fan
I order two silent fans and replace a very loud original fans for network switch. Amazing performance no sound at all.
M**I
Excellent product
This items working perfectly more than original FANs which coming on QNAP 10g managed switch. Very quiet and cooling the switch. Highly Recommended for others
J**I
Very quiet
Bought this to replace my noisy 3D printer hotend fan. It is quiet now.
Trustpilot
2 weeks ago
1 month ago