Hardware Spec Index

Brontix FN-3931 Plus 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3931-PLUS · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index410 (Case Fans scale)
Category rank#47,627
Street price$19
Power3 W
Performance per dollar21.58
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3931 Plus
Size120 × 120 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3931 Plus 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/32324769 (accessed 2026-10-23).