Zephyra FN-3904 Ultra 120mm PWM ARGB Case Fan (3-Pack)
Case Fans · Zephyra · SKU FN3904-ULTRA · Released 2026 · Updated 2026-10-20
Key facts
| Benchmark index | 907 (Case Fans scale) |
|---|---|
| Category rank | #12,801 |
| Street price | $29 |
| Power | 4 W |
| Performance per dollar | 31.28 |
| Released | 2026 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra FN-3904 Ultra |
| Size | 120 × 120 × 25 mm |
| Speed | 500–2,700 RPM (PWM) |
| Airflow | 91.8 CFM |
| Static pressure | 2.97 mmH₂O |
| Noise | 22 dBA |
| Bearing | Rifle bearing |
| Connector | 4-pin PWM + 3-pin 5V ARGB |
| Rated lifetime | 50,000 hours |
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Cite this page: Hardware Spec Index, “Zephyra FN-3904 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/20185543 (accessed 2026-10-20).