Hardware Spec Index

Caldera FN-1666 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN1666-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index496 (Case Fans scale)
Category rank#47,170
Street price$19
Power3 W
Performance per dollar26.11
Released2026

Specifications

BrandCaldera
ModelCaldera FN-1666 Ultra
Size140 × 140 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise25 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-1666 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6013592 (accessed 2026-10-22).