Hardware Spec Index

Brontix FN-4131 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4131-ULTRA · Released 2024 · Updated 2026-10-26

Key facts

Benchmark index434 (Case Fans scale)
Category rank#25,012
Street price$19
Power4 W
Performance per dollar22.84
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4131 Ultra
Size120 × 120 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4131 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/3302222 (accessed 2026-10-26).