Hardware Spec Index

Brontix FN-3831 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3831-PRIME · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index588 (Case Fans scale)
Category rank#16,700
Street price$19
Power2 W
Performance per dollar30.95
Released2022

Specifications

BrandBrontix
ModelBrontix FN-3831 Prime
Size140 × 140 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3831 Prime 140mm PWM Case Fan”, https://vextor7.com/item/4917151 (accessed 2026-10-20).