Hardware Spec Index

Brontix FN-4120 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4120-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index287 (Case Fans scale)
Category rank#43,912
Street price$9
Power3 W
Performance per dollar31.89
Released2020

Specifications

BrandBrontix
ModelBrontix FN-4120 Ultra
Size120 × 120 × 25 mm
Speed500–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4120 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/19484196 (accessed 2026-10-24).