Hardware Spec Index

Brontix FN-3857 Plus 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3857-PLUS · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index413 (Case Fans scale)
Category rank#31,898
Street price$9
Power3 W
Performance per dollar45.89
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3857 Plus
Size140 × 140 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3857 Plus 140mm PWM Case Fan”, https://vextor7.com/item/3386754 (accessed 2026-10-20).