Hardware Spec Index

Brontix FN-3966 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3966-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index642 (Case Fans scale)
Category rank#9,896
Street price$19
Power3 W
Performance per dollar33.79
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3966 Ultra
Size120 × 120 × 25 mm
Speed300–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3966 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/33039063 (accessed 2026-10-25).