Hardware Spec Index

Teralux FN-3989 Ultra 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3989-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index590 (Case Fans scale)
Category rank#12,421
Street price$19
Power3 W
Performance per dollar31.05
Released2021

Specifications

BrandTeralux
ModelTeralux FN-3989 Ultra
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3989 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/6497334 (accessed 2026-10-21).