Quad Cortex Power Supply Input: AC 100-240 V / 50/60 Hz. Output: DC 12 volts / 3 amps. Output Connection: 5.5 / 2.1 mm (Positive pole outside). Adapter Included: Yes, for EU, UK, USA, and China. This power supply is designed to power the Neural DSP Quad Cortex unit. It’s suitable for both home and stage use.