Hardware Spec Index

Brontix FN-3558 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3558-PRO · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index333 (Case Fans scale)
Category rank#5,335
Street price$9
Power3 W
Performance per dollar37.00
Released2022

Specifications

BrandBrontix
ModelBrontix FN-3558 Pro
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3558 Pro 120mm PWM Case Fan”, https://vextor7.com/item/7807529 (accessed 2026-10-25).