Hardware Spec Index

Teralux FN-4091 Pro 140mm PWM Case Fan

Case Fans · Teralux · SKU FN4091-PRO · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index385 (Case Fans scale)
Category rank#2,030
Street price$9
Power3 W
Performance per dollar42.78
Released2026

Specifications

BrandTeralux
ModelTeralux FN-4091 Pro
Size140 × 140 × 25 mm
Speed400–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-4091 Pro 140mm PWM Case Fan”, https://vextor7.com/item/125358 (accessed 2026-10-19).