Hardware Spec Index

Teralux FN-3931 Pro 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3931-PRO · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index342 (Case Fans scale)
Category rank#43,708
Street price$9
Power4 W
Performance per dollar38.00
Released2022

Specifications

BrandTeralux
ModelTeralux FN-3931 Pro
Size140 × 140 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3931 Pro 140mm PWM Case Fan”, https://vextor7.com/item/12880464 (accessed 2026-10-26).