Hardware Spec Index

Brontix FN-9421 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN9421-ULTRA · Released 2026 · Updated 2026-10-26

Key facts

Benchmark index1,293 (Case Fans scale)
Category rank#38,051
Street price$39
Power4 W
Performance per dollar33.15
Released2026

Specifications

BrandBrontix
ModelBrontix FN-9421 Ultra
Size120 × 120 × 25 mm
Speed500–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9421 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/16729010 (accessed 2026-10-26).