Hardware Spec Index

Brontix FN-3681 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3681-PRO · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index404 (Case Fans scale)
Category rank#49,730
Street price$9
Power3 W
Performance per dollar44.89
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3681 Pro
Size120 × 120 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3681 Pro 120mm PWM Case Fan”, https://vextor7.com/item/64024869 (accessed 2026-10-26).