Hardware Spec Index

Brontix FN-3684 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3684-PRIME · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index761 (Case Fans scale)
Category rank#11,702
Street price$19
Power4 W
Performance per dollar40.05
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3684 Prime
Size120 × 120 × 25 mm
Speed400–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3684 Prime 120mm PWM Case Fan”, https://vextor7.com/item/56583148 (accessed 2026-10-25).