Hardware Spec Index

Brontix FN-9521 Ultra 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9521-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index892 (Case Fans scale)
Category rank#22,981
Street price$29
Power4 W
Performance per dollar30.76
Released2023

Specifications

BrandBrontix
ModelBrontix FN-9521 Ultra
Size120 × 120 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9521 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/16701893 (accessed 2026-10-23).