Hardware Spec Index

Teralux FN-3947 Pro 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3947-PRO · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index540 (Case Fans scale)
Category rank#12,777
Street price$19
Power3 W
Performance per dollar28.42
Released2026

Specifications

BrandTeralux
ModelTeralux FN-3947 Pro
Size120 × 120 × 25 mm
Speed500–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3947 Pro 120mm PWM Case Fan”, https://vextor7.com/item/13628609 (accessed 2026-10-20).