Hardware Spec Index

Teralux FN-4791 Ultra 140mm PWM Case Fan

Case Fans · Teralux · SKU FN4791-ULTRA · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index272 (Case Fans scale)
Category rank#615
Street price$9
Power3 W
Performance per dollar30.22
Released2026

Specifications

BrandTeralux
ModelTeralux FN-4791 Ultra
Size140 × 140 × 25 mm
Speed500–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-4791 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/923307 (accessed 2026-10-24).