Characteristics
| Manufacturer | Noctua |
| Pattern | NF-A4X20 FLX |
| Barcode | 9010018100105 |
| Warranty | 72 months |
| Application | Cooler for a box |
| Sizes | 40 x 40 x 20 |
| Fan revolutions | 3700 - 4400 - 5000 OB / min |
| Connector | 3 PIN |
| Noise | 8.5 - 12.2 - 14.9 DBA |
| Air flow (CFM) | 6.9 - 8.3 - 9.4 m³ / h |