Hardware Spec Index

Brontix FN-3681 Core 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3681-CORE · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index507 (Case Fans scale)
Category rank#29,827
Street price$19
Power4 W
Performance per dollar26.68
Released2024

Specifications

BrandBrontix
ModelBrontix FN-3681 Core
Size140 × 140 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3681 Core 140mm PWM Case Fan”, https://vextor7.com/item/1508322 (accessed 2026-10-20).