Hardware Spec Index

Caldera FN-6657 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN6657-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index808 (Case Fans scale)
Category rank#46,987
Street price$19
Power4 W
Performance per dollar42.53
Released2021

Specifications

BrandCaldera
ModelCaldera FN-6657 Ultra
Size120 × 120 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6657 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/50001676 (accessed 2026-10-19).