Hardware Spec Index

Teralux FN-3843 Ultra 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3843-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index596 (Case Fans scale)
Category rank#35,501
Street price$19
Power4 W
Performance per dollar31.37
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3843 Ultra
Size140 × 140 × 25 mm
Speed200–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3843 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/3387903 (accessed 2026-10-24).