The Apple Display Connector (ADC) is a display and data connector developed by Apple Inc. as a proprietary modification of the DVI connector. ADC combines analog and digital video signals, USB, and power all in one cable. It was used in later versions of the Apple Studio Display, including the final 17" CRT model, and most versions of the widescreen Apple Cinema Display, after which Apple adopted standard DVI connectors on later models.
ADC was first implemented in the July 2000 Power Mac G4 and G4 Cube, but disappeared from displays when Apple introduced the aluminum-clad 20" (51 cm), 23" (58 cm), and 30" (76 cm) Apple Cinema Displays in June 2004, which feature separate DVI, USB and FireWire connectors, and their own power supplies. 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. This single processor Power Mac G5 was discontinued soon after in June 2005.