Hardware Spec Index

Brontix FN-6704 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN6704-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index794 (Case Fans scale)
Category rank#12,071
Street price$29
Power4 W
Performance per dollar27.38
Released2022

Specifications

BrandBrontix
ModelBrontix FN-6704 Ultra
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise28 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6704 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/8516248 (accessed 2026-10-19).