Hardware Spec Index

Brontix FN-9991 SE 140mm PWM Case Fan

Case Fans · Brontix · SKU FN9991-SE · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index635 (Case Fans scale)
Category rank#15,788
Street price$19
Power2 W
Performance per dollar33.42
Released2023

Specifications

BrandBrontix
ModelBrontix FN-9991 SE
Size140 × 140 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9991 SE 140mm PWM Case Fan”, https://vextor7.com/item/3932806 (accessed 2026-10-24).