Hardware Spec Index

Brontix FN-3997 Max 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3997-MAX · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index377 (Case Fans scale)
Category rank#31,183
Street price$19
Power3 W
Performance per dollar19.84
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3997 Max
Size140 × 140 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3997 Max 140mm PWM Case Fan”, https://vextor7.com/item/80244881 (accessed 2026-10-19).