Hardware Spec Index

Brontix FN-4285 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4285-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index802 (Case Fans scale)
Category rank#23,772
Street price$19
Power3 W
Performance per dollar42.21
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4285 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4285 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/93317510 (accessed 2026-10-19).