I recently purchased a Mac Pro for my research group at my university. It works fine, came with everything, no problems. It also came with what appears to be a DVI to DVI "adapter," with a DVI in connected to a DVI out with about 2-3 inches of cable. I haven't looked in the manual yet, but I've looked online to try to find out what it is and haven't found any information yet. Any ideas? It seems ludicrous to have such a short extension, and it doesn't look like it adapts anything.