Hardware Spec Index

Teralux FN-3847 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Teralux · SKU FN3847-ULTRA · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index351 (Case Fans scale)
Category rank#46,427
Street price$9
Power3 W
Performance per dollar39.00
Released2025

Specifications

BrandTeralux
ModelTeralux FN-3847 Ultra
Size120 × 120 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3847 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/90148560 (accessed 2026-10-24).