Hardware Spec Index

Brontix FN-3931 Ti 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3931-TI · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index430 (Case Fans scale)
Category rank#40,718
Street price$9
Power4 W
Performance per dollar47.78
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3931 Ti
Size120 × 120 × 25 mm
Speed300–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3931 Ti 120mm PWM Case Fan”, https://vextor7.com/item/95527579 (accessed 2026-10-25).