Hardware Spec Index

Brontix FN-3866 Core 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3866-CORE · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index472 (Case Fans scale)
Category rank#1,558
Street price$19
Power3 W
Performance per dollar24.84
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3866 Core
Size140 × 140 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3866 Core 140mm PWM Case Fan”, https://vextor7.com/item/4987199 (accessed 2026-10-22).