Hardware Spec Index

Brontix FN-4789 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4789-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index430 (Case Fans scale)
Category rank#45,416
Street price$19
Power3 W
Performance per dollar22.63
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4789 Ultra
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4789 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2969925 (accessed 2026-10-22).