Hardware Spec Index

Brontix FN-4857 Pro 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4857-PRO · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index988 (Case Fans scale)
Category rank#49,754
Street price$29
Power3 W
Performance per dollar34.07
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4857 Pro
Size140 × 140 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4857 Pro 140mm PWM ARGB Case Fan”, https://vextor7.com/item/9007108 (accessed 2026-10-22).