Hardware Spec Index

Caldera FN-4639 Ultra 120mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4639-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,226 (Case Fans scale)
Category rank#14,945
Street price$49
Power3 W
Performance per dollar25.02
Released2021

Specifications

BrandCaldera
ModelCaldera FN-4639 Ultra
Size120 × 120 × 25 mm
Speed500–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4639 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/20086608 (accessed 2026-10-20).