Hardware Spec Index

Caldera FN-3917 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3917-ULTRA · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index584 (Case Fans scale)
Category rank#20,856
Street price$19
Power2 W
Performance per dollar30.74
Released2023

Specifications

BrandCaldera
ModelCaldera FN-3917 Ultra
Size140 × 140 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3917 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/9894834 (accessed 2026-10-24).