Hardware Spec Index

Brontix FN-5866 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5866-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index346 (Case Fans scale)
Category rank#19,545
Street price$9
Power3 W
Performance per dollar38.44
Released2023

Specifications

BrandBrontix
ModelBrontix FN-5866 Ultra
Size140 × 140 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5866 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6448788 (accessed 2026-10-23).