Hardware Spec Index

Brontix FN-1991 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN1991-PRIME · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index376 (Case Fans scale)
Category rank#1,566
Street price$19
Power4 W
Performance per dollar19.79
Released2019

Specifications

BrandBrontix
ModelBrontix FN-1991 Prime
Size140 × 140 × 25 mm
Speed200–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-1991 Prime 140mm PWM Case Fan”, https://vextor7.com/item/4119641 (accessed 2026-10-21).