Hardware Spec Index

Caldera FN-3656 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3656-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index743 (Case Fans scale)
Category rank#8,297
Street price$19
Power3 W
Performance per dollar39.11
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3656 Ultra
Size120 × 120 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3656 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/94884647 (accessed 2026-10-25).