The Apple Cinema Display (ADC), Apple Studio Display 17 (ADC), and the Apple Studio Display LCD (ADC) cannot be used for video mirroring on an iMac computer with a VGA style monitor port, including the iMac (Summer 2000) computer.

These Apple displays have an Apple Display Connector (ADC) that combines the video signal, USB, and power into one cord and connector that is not compatible with the VGA style monitor port on an iMac computer. There is no adapter from ADC to the VGA style monitor port on an iMac computer.