Hardware Spec Index

Caldera FN-5665 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN5665-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index957 (Case Fans scale)
Category rank#47,759
Street price$29
Power4 W
Performance per dollar33.00
Released2023

Specifications

BrandCaldera
ModelCaldera FN-5665 Ultra
Size140 × 140 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5665 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/6684989 (accessed 2026-10-23).