Hardware Spec Index

Brontix FN-4900 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4900-ULTRA · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index778 (Case Fans scale)
Category rank#36,466
Street price$29
Power4 W
Performance per dollar26.83
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4900 Ultra
Size120 × 120 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4900 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/8307731 (accessed 2026-10-21).