Hardware Spec Index

Brontix FN-3491 Ultra 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3491-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index848 (Case Fans scale)
Category rank#17,389
Street price$29
Power4 W
Performance per dollar29.24
Released2024

Specifications

BrandBrontix
ModelBrontix FN-3491 Ultra
Size140 × 140 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3491 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/3445642 (accessed 2026-10-25).