Hardware Spec Index

Brontix FN-4047 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4047-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index842 (Case Fans scale)
Category rank#42,409
Street price$29
Power4 W
Performance per dollar29.03
Released2023

Specifications

BrandBrontix
ModelBrontix FN-4047 Ultra
Size120 × 120 × 25 mm
Speed400–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise22 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-4047 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/76350876 (accessed 2026-10-19).