Hardware Spec Index

Brontix FN-3684 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3684-PRO · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index759 (Case Fans scale)
Category rank#12,017
Street price$19
Power2 W
Performance per dollar39.95
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3684 Pro
Size120 × 120 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3684 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4333801 (accessed 2026-10-22).