Hardware Spec Index

Brontix FN-4857 Pro 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4857-PRO · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index934 (Case Fans scale)
Category rank#846
Street price$29
Power4 W
Performance per dollar32.21
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4857 Pro
Size140 × 140 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4857 Pro 140mm PWM ARGB Case Fan”, https://vextor7.com/item/79481146 (accessed 2026-10-23).