Hardware Spec Index

Brontix FN-3850 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3850-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index729 (Case Fans scale)
Category rank#8,397
Street price$29
Power4 W
Performance per dollar25.14
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3850 Ultra
Size120 × 120 × 25 mm
Speed500–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3850 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/31494336 (accessed 2026-10-25).