Hardware Spec Index

Brontix FN-4291 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4291-ULTRA · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index746 (Case Fans scale)
Category rank#21,209
Street price$19
Power3 W
Performance per dollar39.26
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4291 Ultra
Size120 × 120 × 25 mm
Speed500–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4291 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/802275 (accessed 2026-10-21).