Hardware Spec Index

Brontix FN-4581 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4581-PRO · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index778 (Case Fans scale)
Category rank#7,529
Street price$19
Power2 W
Performance per dollar40.95
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4581 Pro
Size140 × 140 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4581 Pro 140mm PWM Case Fan”, https://vextor7.com/item/85965692 (accessed 2026-10-23).