Hardware Spec Index

Caldera FN-6645 XT 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN6645-XT · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index864 (Case Fans scale)
Category rank#28,400
Street price$29
Power3 W
Performance per dollar29.79
Released2021

Specifications

BrandCaldera
ModelCaldera FN-6645 XT
Size140 × 140 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6645 XT 140mm PWM ARGB Case Fan”, https://vextor7.com/item/90148600 (accessed 2026-10-24).