Hardware Spec Index

Caldera FN-4666 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4666-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index773 (Case Fans scale)
Category rank#23,277
Street price$29
Power3 W
Performance per dollar26.66
Released2023

Specifications

BrandCaldera
ModelCaldera FN-4666 Ultra
Size140 × 140 × 25 mm
Speed500–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4666 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/7409208 (accessed 2026-10-23).