Hardware Spec Index

Brontix FN-3947 Max 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3947-MAX · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index500 (Case Fans scale)
Category rank#36,110
Street price$19
Power4 W
Performance per dollar26.32
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3947 Max
Size140 × 140 × 25 mm
Speed200–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3947 Max 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7574940 (accessed 2026-10-24).