Hardware Spec Index

Brontix FN-3947 Max 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3947-MAX · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index614 (Case Fans scale)
Category rank#36,499
Street price$19
Power3 W
Performance per dollar32.32
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3947 Max
Size120 × 120 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3947 Max 120mm PWM Case Fan”, https://vextor7.com/item/82328879 (accessed 2026-10-26).