Hardware Spec Index

Brontix FN-4865 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4865-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index674 (Case Fans scale)
Category rank#39,452
Street price$19
Power3 W
Performance per dollar35.47
Released2023

Specifications

BrandBrontix
ModelBrontix FN-4865 Ultra
Size140 × 140 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4865 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6607371 (accessed 2026-10-26).