Hardware Spec Index

Brontix FN-3947 SE 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3947-SE · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index1,308 (Case Fans scale)
Category rank#18,256
Street price$49
Power3 W
Performance per dollar26.69
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3947 SE
Size140 × 140 × 25 mm
Speed200–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3947 SE 140mm PWM ARGB Case Fan”, https://vextor7.com/item/5452978 (accessed 2026-10-21).