Hardware Spec Index

Brontix FN-3857 XT 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3857-XT · Released 2026 · Updated 2026-10-26

Key facts

Benchmark index816 (Case Fans scale)
Category rank#37,544
Street price$29
Power4 W
Performance per dollar28.14
Released2026

Specifications

BrandBrontix
ModelBrontix FN-3857 XT
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3857 XT 140mm PWM ARGB Case Fan”, https://vextor7.com/item/83958025 (accessed 2026-10-26).