Hardware Spec Index

Teralux FN-3850 Ultra 140mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN3850-ULTRA · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index1,062 (Case Fans scale)
Category rank#15,626
Street price$29
Power3 W
Performance per dollar36.62
Released2021

Specifications

BrandTeralux
ModelTeralux FN-3850 Ultra
Size140 × 140 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3850 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/20092927 (accessed 2026-10-26).