Zephyra FN-6637 Pro 120mm PWM ARGB Case Fan (3-Pack)
Case Fans · Zephyra · SKU FN6637-PRO · Released 2019 · Updated 2026-10-23
Key facts
| Benchmark index | 880 (Case Fans scale) |
|---|---|
| Category rank | #47,914 |
| Street price | $29 |
| Power | 4 W |
| Performance per dollar | 30.34 |
| Released | 2019 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra FN-6637 Pro |
| Size | 120 × 120 × 25 mm |
| Speed | 300–2,500 RPM (PWM) |
| Airflow | 85.0 CFM |
| Static pressure | 2.75 mmH₂O |
| Noise | 22 dBA |
| Bearing | Fluid dynamic 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-6637 Pro 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/6202068 (accessed 2026-10-23).