The analog video connector on many Apple computers is a standard DB15 (also called D-sub-15) connector, which is used with VGA, SVGA, or XGA monitors. Figure 1 shows the pin configuration and the table lists the signal pin assignments.
Figure 1 VGA connector
| Red video signal | ||
| Green video signal | ||
| Blue video signal | ||
| Monitor ID signal 0 | ||
| Return | ||
| Analog video ground | ||
| Power for I/O device | ||
| HSYNC and VSYNC ground | ||
| VGA ID signal | ||
| Monitor ID signal 2 | ||
| Horizontal synchronization signal | ||
| Vertical synchronization signal | ||
| Monitor ID signal 1 |