Hardware Spec Index

Teralux FN-3981 Pro 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3981-PRO · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index775 (Case Fans scale)
Category rank#35,822
Street price$19
Power4 W
Performance per dollar40.79
Released2024

Specifications

BrandTeralux
ModelTeralux FN-3981 Pro
Size120 × 120 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3981 Pro 120mm PWM Case Fan”, https://vextor7.com/item/99832483 (accessed 2026-10-25).