Hardware Spec Index

Caldera FN-4091 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4091-ULTRA · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index1,048 (Case Fans scale)
Category rank#26,861
Street price$29
Power3 W
Performance per dollar36.14
Released2020

Specifications

BrandCaldera
ModelCaldera FN-4091 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise24 dBA
BearingRifle 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/60023941 (accessed 2026-10-26).