Hardware Spec Index

Brontix FN-4670 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4670-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index580 (Case Fans scale)
Category rank#25,985
Street price$19
Power2 W
Performance per dollar30.53
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4670 Ultra
Size140 × 140 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4670 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/7613345 (accessed 2026-10-23).