Zephyra FN-3840 Ultra 120mm PWM ARGB Case Fan (3-Pack)
Case Fans · Zephyra · SKU FN3840-ULTRA · Released 2023 · Updated 2026-10-21
Key facts
| Benchmark index | 994 (Case Fans scale) |
|---|---|
| Category rank | #39,213 |
| Street price | $39 |
| Power | 4 W |
| Performance per dollar | 25.49 |
| Released | 2023 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra FN-3840 Ultra |
| Size | 120 × 120 × 25 mm |
| Speed | 500–2,800 RPM (PWM) |
| Airflow | 95.2 CFM |
| Static pressure | 3.08 mmH₂O |
| Noise | 23 dBA |
| Bearing | Rifle bearing |
| Connector | 4-pin PWM + 3-pin 5V ARGB |
| Rated lifetime | 100,000 hours |
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Cite this page: Hardware Spec Index, “Zephyra FN-3840 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/4396133 (accessed 2026-10-21).