Hardware Spec Index

Brontix FN-3974 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3974-PRO · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index313 (Case Fans scale)
Category rank#40,628
Street price$9
Power3 W
Performance per dollar34.78
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3974 Pro
Size120 × 120 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3974 Pro 120mm PWM Case Fan”, https://vextor7.com/item/6437580 (accessed 2026-10-20).