Hardware Spec Index

Teralux FN-3989 Ultra 120mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN3989-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,023 (Case Fans scale)
Category rank#41,227
Street price$29
Power3 W
Performance per dollar35.28
Released2021

Specifications

BrandTeralux
ModelTeralux FN-3989 Ultra
Size120 × 120 × 25 mm
Speed200–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise23 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-3989 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/51678620 (accessed 2026-10-20).