Hardware Spec Index

Brontix FN-4845 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4845-ULTRA · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index346 (Case Fans scale)
Category rank#7,016
Street price$9
Power4 W
Performance per dollar38.44
Released2022

Specifications

BrandBrontix
ModelBrontix FN-4845 Ultra
Size140 × 140 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4845 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/48412007 (accessed 2026-10-20).