Hardware Spec Index

Caldera FN-3665 Core 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3665-CORE · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index445 (Case Fans scale)
Category rank#39,139
Street price$19
Power3 W
Performance per dollar23.42
Released2022

Specifications

BrandCaldera
ModelCaldera FN-3665 Core
Size140 × 140 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3665 Core 140mm PWM Case Fan”, https://vextor7.com/item/4374416 (accessed 2026-10-19).