Hardware Spec Index

Teralux FN-3994 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Teralux · SKU FN3994-PRO · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index381 (Case Fans scale)
Category rank#27,891
Street price$19
Power4 W
Performance per dollar20.05
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3994 Pro
Size120 × 120 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3994 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3441966 (accessed 2026-10-22).