Q: Connect an external display to MacBook Pro

You may be able to find info on a possible match to an adapter in this page:

•About Apple video adapters and cables

•Apple computers: Troubleshooting issues with video on internal or external displays

There is a dual link adapter that usually runs about $100. or so, that may work.

Some of the older adapters may not work directly without another workaround.

The older Apple 23" displays use different technologies than the later ones; but

sometimes these are listed alongside the later ones in the Apple Store Special

Deals refurb page, and the info tells more of what they'd fit.

Some adapters may be more difficult to find as time goes on, or you may have

to locate one from a reputable vendor (not auction) where you have recourse

should the part be misrepresented or defective.

Good luck & happy computing!