Hardware Spec Index

Brontix FN-5391 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN5391-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index254 (Case Fans scale)
Category rank#49,090
Street price$9
Power4 W
Performance per dollar28.22
Released2023

Specifications

BrandBrontix
ModelBrontix FN-5391 Ultra
Size140 × 140 × 25 mm
Speed200–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5391 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/28021872 (accessed 2026-10-23).