Hardware Spec Index

Teralux FN-3971 Pro 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3971-PRO · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index648 (Case Fans scale)
Category rank#43,455
Street price$19
Power4 W
Performance per dollar34.11
Released2023

Specifications

BrandTeralux
ModelTeralux FN-3971 Pro
Size140 × 140 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3971 Pro 140mm PWM Case Fan”, https://vextor7.com/item/7196145 (accessed 2026-10-23).