Hardware Spec Index

Caldera FN-4021 Ultra 120mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4021-ULTRA · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index959 (Case Fans scale)
Category rank#6,093
Street price$29
Power3 W
Performance per dollar33.07
Released2024

Specifications

BrandCaldera
ModelCaldera FN-4021 Ultra
Size120 × 120 × 25 mm
Speed500–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4021 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/771193 (accessed 2026-10-23).