Hardware Spec Index

Brontix FN-6347 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN6347-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index356 (Case Fans scale)
Category rank#44,221
Street price$9
Power4 W
Performance per dollar39.56
Released2020

Specifications

BrandBrontix
ModelBrontix FN-6347 Ultra
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6347 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/11451908 (accessed 2026-10-19).