🌀 Silence meets power — cool smarter, not louder.
The Noctua NF-A4x20 FLX is a premium 40x20mm 12V fan featuring adjustable speeds up to 5000 RPM, ultra-low noise operation at 14.9 dB(A), and exceptional durability with an MTTF exceeding 150,000 hours. Designed with advanced acoustic optimization and versatile mounting options, it’s the perfect quiet cooling solution for compact servers, network devices, and storage systems.
| Manufacturer | Noctua |
| Part number | NF-A4x20 FLX |
| Item Weight | 50 g |
| Product Dimensions | 4 x 4 x 2 cm; 50 g |
| Is Discontinued By Manufacturer | No |
| Size | 40x20mm |
| Color | Beige/Brown |
| Style | 12 Volt |
| Material | Fiberglass Reinforced PBT |
| Voltage | 12 Volts |
| Amperage Capacity | 0.05 Amps |
| Noise Level | 14.9 dB |
| Included Components | See Product Description |
| Batteries Included | No |
| Batteries Required? | No |
| Item Dimensions LxWxH | 40 x 40 x 20 mm |
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