Hardware Spec Index

Brontix FN-3920 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3920-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index621 (Case Fans scale)
Category rank#21,199
Street price$19
Power3 W
Performance per dollar32.68
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3920 Ultra
Size140 × 140 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise26 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3920 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3907313 (accessed 2026-10-19).