Hardware Spec Index

Teralux FN-4391 Plus 140mm PWM Case Fan

Case Fans · Teralux · SKU FN4391-PLUS · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index457 (Case Fans scale)
Category rank#43,023
Street price$19
Power3 W
Performance per dollar24.05
Released2019

Specifications

BrandTeralux
ModelTeralux FN-4391 Plus
Size140 × 140 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-4391 Plus 140mm PWM Case Fan”, https://vextor7.com/item/9058355 (accessed 2026-10-24).