Hardware Spec Index

Teralux FN-3946 Ultra 140mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN3946-ULTRA · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index932 (Case Fans scale)
Category rank#967
Street price$29
Power4 W
Performance per dollar32.14
Released2022

Specifications

BrandTeralux
ModelTeralux FN-3946 Ultra
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3946 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/94824548 (accessed 2026-10-24).