This is the Alpine KAC-001 12-Volt Accessory / Switch control module, which allows you (using compatible Alpine head units) to control up to 8 accessories via your multimedia head unit.
TAKE THE COMMAND CENTER BEYOND THE DASH
Does your vehicle have electrical controls such as a winch, lights, air suspension, automatic trunk, motorized tonneau cover, etc? No need to add switches that clutter your dash anymore. Now you can conveniently control these accessories directly from your Alpine Dash System* touchscreen!
The KAC-001 Accessory Controller turns your Alpine Dash System* into a hub to connect and control these accessories. This module includes eight individual outputs are available to control eight relay-connected 12V accessories, and the accessories can be configured as Pulsed, Latched or Momentary Outputs. Graphical icons can be assigned to each accessory for quick identification on the screen.