Hardware Spec Index

Caldera FN-3665 Core 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3665-CORE · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index577 (Case Fans scale)
Category rank#18,684
Street price$19
Power3 W
Performance per dollar30.37
Released2025

Specifications

BrandCaldera
ModelCaldera FN-3665 Core
Size140 × 140 × 25 mm
Speed200–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise30 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/12377559 (accessed 2026-10-19).