Hardware Spec Index

Brontix FN-4577 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4577-ULTRA · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index594 (Case Fans scale)
Category rank#47,900
Street price$19
Power3 W
Performance per dollar31.26
Released2022

Specifications

BrandBrontix
ModelBrontix FN-4577 Ultra
Size120 × 120 × 25 mm
Speed200–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4577 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/9599327 (accessed 2026-10-23).