Hardware Spec Index

Brontix FN-3789 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3789-PRIME · Released 2019 · Updated 2026-10-18

Key facts

Benchmark index249 (Case Fans scale)
Category rank#35,575
Street price$9
Power4 W
Performance per dollar27.67
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3789 Prime
Size140 × 140 × 25 mm
Speed300–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3789 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/91554060 (accessed 2026-10-18).