Hardware Spec Index

Caldera FN-4091 Plus 120mm PWM Case Fan

Case Fans · Caldera · SKU FN4091-PLUS · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index566 (Case Fans scale)
Category rank#25,844
Street price$19
Power4 W
Performance per dollar29.79
Released2019

Specifications

BrandCaldera
ModelCaldera FN-4091 Plus
Size120 × 120 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4091 Plus 120mm PWM Case Fan”, https://vextor7.com/item/29955653 (accessed 2026-10-24).