Hardware Spec Index

Teralux FN-3851 Ultra 140mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN3851-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index1,104 (Case Fans scale)
Category rank#26,143
Street price$29
Power4 W
Performance per dollar38.07
Released2023

Specifications

BrandTeralux
ModelTeralux FN-3851 Ultra
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3851 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/4569713 (accessed 2026-10-20).