Hardware Spec Index

Caldera FN-6645 XT 120mm PWM Case Fan

Case Fans · Caldera · SKU FN6645-XT · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index302 (Case Fans scale)
Category rank#5,013
Street price$9
Power3 W
Performance per dollar33.56
Released2021

Specifications

BrandCaldera
ModelCaldera FN-6645 XT
Size120 × 120 × 25 mm
Speed500–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6645 XT 120mm PWM Case Fan”, https://vextor7.com/item/333677 (accessed 2026-10-21).