what does a video adapter cable look like?

Depends on what it is adapting to what. There are dozens of different interfaces e.g. VGA, SCART, Composite Video (in at least three flavours, RGB (In many flavours), DVI, HDMI, etc.

Try to expand your question a little in NEW question. (This will look closed.) e.g What are you try to attach to what?

t
November 2007