Hardware Spec Index

Teralux FN-3981 Pro 120mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN3981-PRO · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,224 (Case Fans scale)
Category rank#48,394
Street price$39
Power2 W
Performance per dollar31.38
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3981 Pro
Size120 × 120 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3981 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/215258 (accessed 2026-10-19).