Hardware Spec Index

Teralux FN-3977 XT 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3977-XT · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index809 (Case Fans scale)
Category rank#33,269
Street price$29
Power3 W
Performance per dollar27.90
Released2023

Specifications

BrandTeralux
ModelTeralux FN-3977 XT
Size140 × 140 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3977 XT 140mm PWM Case Fan”, https://vextor7.com/item/15501152 (accessed 2026-10-22).