Hardware Spec Index

Brontix FN-3851 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3851-ULTRA · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index848 (Case Fans scale)
Category rank#21,889
Street price$29
Power3 W
Performance per dollar29.24
Released2022

Specifications

BrandBrontix
ModelBrontix FN-3851 Ultra
Size120 × 120 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3851 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/1243494 (accessed 2026-10-26).