Hardware Spec Index

Teralux FN-3977 Ultra 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3977-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index418 (Case Fans scale)
Category rank#18,721
Street price$19
Power3 W
Performance per dollar22.00
Released2026

Specifications

BrandTeralux
ModelTeralux FN-3977 Ultra
Size120 × 120 × 25 mm
Speed200–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3977 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/74891675 (accessed 2026-10-22).