Hardware Spec Index

Caldera FN-4391 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4391-PRO · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index218 (Case Fans scale)
Category rank#48,147
Street price$9
Power4 W
Performance per dollar24.22
Released2024

Specifications

BrandCaldera
ModelCaldera FN-4391 Pro
Size140 × 140 × 25 mm
Speed200–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4391 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3460477 (accessed 2026-10-19).