Hardware Spec Index

Caldera FN-6658 Core 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6658-CORE · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index443 (Case Fans scale)
Category rank#1,323
Street price$9
Power3 W
Performance per dollar49.22
Released2019

Specifications

BrandCaldera
ModelCaldera FN-6658 Core
Size140 × 140 × 25 mm
Speed200–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6658 Core 140mm PWM Case Fan”, https://vextor7.com/item/8084076 (accessed 2026-10-21).