Hardware Spec Index

Brontix FN-4181 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4181-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index449 (Case Fans scale)
Category rank#36,555
Street price$19
Power3 W
Performance per dollar23.63
Released2023

Specifications

BrandBrontix
ModelBrontix FN-4181 Ultra
Size140 × 140 × 25 mm
Speed200–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4181 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/11236596 (accessed 2026-10-20).