Hardware Spec Index

Brontix FN-3831 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3831-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index970 (Case Fans scale)
Category rank#47,630
Street price$39
Power4 W
Performance per dollar24.87
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3831 Ultra
Size120 × 120 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3831 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/37524566 (accessed 2026-10-23).