Hardware Spec Index

Brontix FN-6491 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN6491-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index790 (Case Fans scale)
Category rank#15,436
Street price$19
Power3 W
Performance per dollar41.58
Released2019

Specifications

BrandBrontix
ModelBrontix FN-6491 Ultra
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6491 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/6480786 (accessed 2026-10-20).