Hardware Spec Index

Caldera FN-3640 XT 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3640-XT · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index347 (Case Fans scale)
Category rank#12,777
Street price$9
Power3 W
Performance per dollar38.56
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3640 XT
Size120 × 120 × 25 mm
Speed400–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3640 XT 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/29139648 (accessed 2026-10-25).