Hardware Spec Index

Brontix FN-4857 Core 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4857-CORE · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index586 (Case Fans scale)
Category rank#2,083
Street price$19
Power4 W
Performance per dollar30.84
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4857 Core
Size140 × 140 × 25 mm
Speed200–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4857 Core 140mm PWM Case Fan”, https://vextor7.com/item/87729115 (accessed 2026-10-25).