Hardware Spec Index

Brontix FN-3939 Pro 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3939-PRO · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index906 (Case Fans scale)
Category rank#48,559
Street price$29
Power4 W
Performance per dollar31.24
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3939 Pro
Size120 × 120 × 25 mm
Speed500–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise32 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-3939 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/7213489 (accessed 2026-10-21).