Hardware Spec Index

Brontix FN-4381 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4381-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index458 (Case Fans scale)
Category rank#15,516
Street price$19
Power4 W
Performance per dollar24.11
Released2020

Specifications

BrandBrontix
ModelBrontix FN-4381 Ultra
Size120 × 120 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4381 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/15420358 (accessed 2026-10-20).