Hardware Spec Index

Brontix FN-6991 SE 140mm PWM Case Fan

Case Fans · Brontix · SKU FN6991-SE · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index357 (Case Fans scale)
Category rank#48,232
Street price$19
Power2 W
Performance per dollar18.79
Released2021

Specifications

BrandBrontix
ModelBrontix FN-6991 SE
Size140 × 140 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6991 SE 140mm PWM Case Fan”, https://vextor7.com/item/60029794 (accessed 2026-10-25).