Hardware Spec Index

Caldera FN-1591 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN1591-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index296 (Case Fans scale)
Category rank#17,143
Street price$9
Power3 W
Performance per dollar32.89
Released2021

Specifications

BrandCaldera
ModelCaldera FN-1591 Ultra
Size140 × 140 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-1591 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/21394274 (accessed 2026-10-25).