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EGA=Enhanced Graphics adapter. Interface bus uses a 9-pin D-sub connector. This EGA standard [1984] offered improved resolutions and more colors than CGA. EGA allowed graphical output up to 16 colors (chosen from a palette of 64) at screen resolutions of 640x350, or 80x25 text with 16 colors, all at a refresh rate of 60 Hz. The monitors have a digital interface.

 9 pin D-SUB female
9 pin D-SUB female connector  at the videocard
Pin Name Description
2SRSecondary Red
3PRPrimary Red
4PGPrimary Green
5PBPrimary Blue
6SG/ISecondary Green / Intensity
7SBSecondary Blue
8HHorizontal Sync
9VVertical Sync

9 pin D-SUB male
9 pin D-SUB male connector  at the monitor cable

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