Hardware Spec Index

Brontix FN-3971 Max 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3971-MAX · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index743 (Case Fans scale)
Category rank#47,296
Street price$19
Power3 W
Performance per dollar39.11
Released2026

Specifications

BrandBrontix
ModelBrontix FN-3971 Max
Size140 × 140 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3971 Max 140mm PWM Case Fan”, https://vextor7.com/item/2185203 (accessed 2026-10-22).