Caldera FN-1691 Ultra 140mm PWM ARGB Case Fan (3-Pack)
Case Fans · Caldera · SKU FN1691-ULTRA · Released 2025 · Updated 2026-10-25
Key facts
| Benchmark index | 1,325 (Case Fans scale) |
|---|---|
| Category rank | #448 |
| Street price | $39 |
| Power | 4 W |
| Performance per dollar | 33.97 |
| Released | 2025 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera FN-1691 Ultra |
| Size | 140 × 140 × 25 mm |
| Speed | 500–3,000 RPM (PWM) |
| Airflow | 144.0 CFM |
| Static pressure | 2.85 mmH₂O |
| Noise | 29 dBA |
| Bearing | Rifle bearing |
| Connector | 4-pin PWM + 3-pin 5V ARGB |
| Rated lifetime | 100,000 hours |
Related guides
Similar Case Fans
Cite this page: Hardware Spec Index, “Caldera FN-1691 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/31362562 (accessed 2026-10-25).