Hardware Spec Index

Teralux FN-3948 Ultra 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3948-ULTRA · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index372 (Case Fans scale)
Category rank#13,961
Street price$9
Power4 W
Performance per dollar41.33
Released2022

Specifications

BrandTeralux
ModelTeralux FN-3948 Ultra
Size120 × 120 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3948 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/97834716 (accessed 2026-10-22).