Hardware Spec Index

Brontix FN-3685 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3685-PRO · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index774 (Case Fans scale)
Category rank#46,351
Street price$29
Power3 W
Performance per dollar26.69
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3685 Pro
Size120 × 120 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise24 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3685 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/798674 (accessed 2026-10-19).