Hardware Spec Index

Brontix FN-4581 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4581-PRIME · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index789 (Case Fans scale)
Category rank#47,774
Street price$29
Power3 W
Performance per dollar27.21
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4581 Prime
Size120 × 120 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4581 Prime 120mm PWM Case Fan”, https://vextor7.com/item/96566184 (accessed 2026-10-23).