Hardware Spec Index

Caldera FN-4091 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4091-PRO · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index206 (Case Fans scale)
Category rank#42,335
Street price$9
Power3 W
Performance per dollar22.89
Released2025

Specifications

BrandCaldera
ModelCaldera FN-4091 Pro
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4091 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/120183 (accessed 2026-10-21).