Hardware Spec Index

Caldera FN-3639 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3639-ULTRA · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index311 (Case Fans scale)
Category rank#36,715
Street price$9
Power3 W
Performance per dollar34.56
Released2020

Specifications

BrandCaldera
ModelCaldera FN-3639 Ultra
Size120 × 120 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3639 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/30452383 (accessed 2026-10-22).