Hardware Spec Index

Brontix FN-4957 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4957-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index377 (Case Fans scale)
Category rank#45,680
Street price$9
Power4 W
Performance per dollar41.89
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4957 Ultra
Size140 × 140 × 25 mm
Speed500–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise28 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4957 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/20108839 (accessed 2026-10-21).