Hardware Spec Index

Teralux FN-3921 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Teralux · SKU FN3921-PRO · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index344 (Case Fans scale)
Category rank#10,177
Street price$9
Power4 W
Performance per dollar38.22
Released2019

Specifications

BrandTeralux
ModelTeralux FN-3921 Pro
Size140 × 140 × 25 mm
Speed200–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise25 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3921 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/5458874 (accessed 2026-10-21).