Hardware Spec Index

Brontix FN-3857 Core 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3857-CORE · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index221 (Case Fans scale)
Category rank#20,833
Street price$9
Power3 W
Performance per dollar24.56
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3857 Core
Size120 × 120 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3857 Core 120mm PWM Case Fan”, https://vextor7.com/item/9879633 (accessed 2026-10-23).