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Most likely it will be a 2006 model, but if it shows the specifications, that will help you identify which model family it is.
 
Again, call the company so you can find out for sure instead of asking on a forum where people don't have access to the information.
 
Don't you think it would be better to ask your questions in a single post instead of starting 3 separate threads asking about the cinema displays and 7 others asking about the Mac Pro?
 
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