The Noctua NF-A12x25 ULN premium fan provides ultra‑low noise operation with two speed settings and high efficiency for cooling applications.
The NF-A12x25 ULN is an ultra‑low‑noise (ULN) 120 mm fan designed with advanced acoustic optimization and a flow‑optimized frame. It targets demanding cooling scenarios such as liquid‑cooled radiators and high‑performance PC cases, offering smooth operation and a long service life.
Key specifications include a compact 120 × 120 × 25 mm size, 355 g weight, two speed options (1200 RPM and 900 RPM), a MTBF of over 150 000 h, and a six‑year warranty. The fan ships in a 36‑piece box and includes a silicone gasket and mounting adapter for radiator installation.
| Fan dimensions | 120x120x25 mm |
|---|---|
| Weight | 355 g |
| Speed settings | 1200 RPM / 900 RPM |
| Maximum static pressure | 0.82 mmH₂O (low) / 0.41 mmH₂O (high) |
| Warranty period | 6 years |
| Mean time between failures | > 150 000 h |
| Units per box | 36 pcs |
It offers two speed settings: 1200 RPM and 900 RPM.
The fan comes with a six‑year warranty.
The average MTBF is greater than 150 000 hours.
The fan measures 120 × 120 × 25 mm.