Hardware Spec Index

Teralux FN-3974 Prime 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3974-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index756 (Case Fans scale)
Category rank#3,570
Street price$19
Power3 W
Performance per dollar39.79
Released2025

Specifications

BrandTeralux
ModelTeralux FN-3974 Prime
Size140 × 140 × 25 mm
Speed300–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3974 Prime 140mm PWM Case Fan”, https://vextor7.com/item/494395 (accessed 2026-10-20).