Hardware Spec Index

Teralux FN-3840 Ultra 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3840-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index207 (Case Fans scale)
Category rank#37,025
Street price$9
Power3 W
Performance per dollar23.00
Released2022

Specifications

BrandTeralux
ModelTeralux FN-3840 Ultra
Size120 × 120 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3840 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/583583 (accessed 2026-10-21).