Hardware Spec Index

Brontix FN-3931 XT 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3931-XT · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index1,156 (Case Fans scale)
Category rank#43,213
Street price$39
Power3 W
Performance per dollar29.64
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3931 XT
Size120 × 120 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise28 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3931 XT 120mm PWM ARGB Case Fan”, https://vextor7.com/item/6085346 (accessed 2026-10-24).