Hardware Spec Index

Brontix FN-3935 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3935-ULTRA · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index523 (Case Fans scale)
Category rank#30,822
Street price$19
Power2 W
Performance per dollar27.53
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3935 Ultra
Size120 × 120 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3935 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/11229211 (accessed 2026-10-26).