Zephyra FN-3970 Ultra 140mm PWM ARGB Case Fan (3-Pack)
Case Fans · Zephyra · SKU FN3970-ULTRA · Released 2022 · Updated 2026-10-21
Key facts
| Benchmark index | 923 (Case Fans scale) |
|---|---|
| Category rank | #30,006 |
| Street price | $29 |
| Power | 3 W |
| Performance per dollar | 31.83 |
| Released | 2022 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra FN-3970 Ultra |
| Size | 140 × 140 × 25 mm |
| Speed | 400–1,800 RPM (PWM) |
| Airflow | 86.4 CFM |
| Static pressure | 1.71 mmH₂O |
| Noise | 23 dBA |
| Bearing | Magnetic levitation |
| 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-3970 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/1325871 (accessed 2026-10-21).