Hardware Spec Index

Brontix FN-9791 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9791-PRIME · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index442 (Case Fans scale)
Category rank#19,706
Street price$9
Power2 W
Performance per dollar49.11
Released2022

Specifications

BrandBrontix
ModelBrontix FN-9791 Prime
Size140 × 140 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9791 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6203016 (accessed 2026-10-22).