Hardware Spec Index

Caldera FN-3643 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3643-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index622 (Case Fans scale)
Category rank#16,366
Street price$19
Power3 W
Performance per dollar32.74
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3643 Ultra
Size120 × 120 × 25 mm
Speed400–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3643 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/9507077 (accessed 2026-10-20).