Hardware Spec Index

Brontix FN-4865 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4865-ULTRA · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index571 (Case Fans scale)
Category rank#37,408
Street price$19
Power4 W
Performance per dollar30.05
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4865 Ultra
Size140 × 140 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise22 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4865 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/83178808 (accessed 2026-10-26).