The Wacom One AC power adapter is an external power supply designed to work with the USB-C (ACK4490601Z) or 3-in-1 cables (ACK4490602Z) to provide power to a Wacom One 12 or Wacom One 13 Touch when the computer's USB port is insufficient to power the display on its own. The dual-voltage adapter comes with interchangeable power plug heads to accommodate various country outlet/plug configurations and voltage requirements.