Hardware Spec Index

Brontix FN-3478 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3478-PRIME · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index567 (Case Fans scale)
Category rank#10,431
Street price$19
Power2 W
Performance per dollar29.84
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3478 Prime
Size140 × 140 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3478 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4372666 (accessed 2026-10-24).