Hardware Spec Index

Brontix FN-3957 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3957-ULTRA · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index526 (Case Fans scale)
Category rank#29,001
Street price$19
Power3 W
Performance per dollar27.68
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3957 Ultra
Size140 × 140 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3957 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/92391841 (accessed 2026-10-24).