ADC combines analog and digital video signals, USB, and power all in one cable.

An ADC port was still included with the Power Mac G5 until April 2005, when new models meant the only remaining Apple product with an ADC interface was the single processor Power Mac G5 introduced in October 2004.

The ADC carries up to 100 W of power, an insufficient amount to run most 19-inch (48 cm) or bigger CRTs widely available during ADC's debut, nor can it run contemporary flat panels marketed for home entertainment (many of which support DVI or VGA connections) without an adapter.

Such cables, however, employ standard DVI, power, USB and FireWire connectors, avoiding drawbacks to ADC.

Power is supplied to the ADC port by an additional finger connector on the video card, which plugs into a slot on the motherboard between the AGP slot and the back panel of the computer; on G4 Macs, some power is also sent through AGP pins 3 and 11.