Hardware Spec Index

Caldera FN-4091 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4091-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index962 (Case Fans scale)
Category rank#6,128
Street price$29
Power3 W
Performance per dollar33.17
Released2019

Specifications

BrandCaldera
ModelCaldera FN-4091 Ultra
Size140 × 140 × 25 mm
Speed500–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4091 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/3498129 (accessed 2026-10-22).