Hardware Spec Index

Brontix FN-4789 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4789-PRO · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index248 (Case Fans scale)
Category rank#39,061
Street price$9
Power3 W
Performance per dollar27.56
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4789 Pro
Size140 × 140 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise25 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4789 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/20015936 (accessed 2026-10-19).