Hardware Spec Index

Brontix FN-5641 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN5641-ULTRA · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index674 (Case Fans scale)
Category rank#21,974
Street price$19
Power3 W
Performance per dollar35.47
Released2025

Specifications

BrandBrontix
ModelBrontix FN-5641 Ultra
Size120 × 120 × 25 mm
Speed300–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5641 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/76529360 (accessed 2026-10-25).