Zephyra FN-4321 Ultra 140mm PWM ARGB Case Fan (3-Pack)
Case Fans · Zephyra · SKU FN4321-ULTRA · Released 2021 · Updated 2026-10-18
Key facts
| Benchmark index | 1,055 (Case Fans scale) |
|---|---|
| Category rank | #4,546 |
| Street price | $39 |
| Power | 4 W |
| Performance per dollar | 27.05 |
| Released | 2021 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra FN-4321 Ultra |
| Size | 140 × 140 × 25 mm |
| Speed | 300–2,800 RPM (PWM) |
| Airflow | 134.4 CFM |
| Static pressure | 2.66 mmH₂O |
| Noise | 32 dBA |
| Bearing | Rifle bearing |
| Connector | 4-pin PWM + 3-pin 5V ARGB |
| Rated lifetime | 150,000 hours |
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Cite this page: Hardware Spec Index, “Zephyra FN-4321 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/3623552 (accessed 2026-10-18).