Hardware Spec Index

Brontix FN-5649 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5649-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index314 (Case Fans scale)
Category rank#20,769
Street price$9
Power4 W
Performance per dollar34.89
Released2025

Specifications

BrandBrontix
ModelBrontix FN-5649 Ultra
Size140 × 140 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5649 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/91587952 (accessed 2026-10-23).