What is this Apple cable

Anyone know what this cable might go to: Its an Apple looking cable (Apple Platinum, same physical connector style as they used, and found in a box of Apple/Mac stuff... it just lacks an actual Apple logo). It goes from 15 pin D-shell (Mac RGB style) to 9 pin D-shell (PC Serial style). Assuming it to be an Apple cable, it looks like it would go from RGB to something. I'm not aware of any Apple monitors that use a 9 pin connector however. I know there were some 3rd party ones for early Macs (some full page monitors and the likes), but I didn't know of any that would interface with the Mac's RGB connector. Of course, this doesn't rule out that it is a 3rd party video cable that maybe went to a custom video card (like most of the 9 pin using 3rd party monitors I have seen do, only those that I have seen that use 9 pin have all been 9 pin to 9 pin, not 15 to 9). So, has anyone seen a cable like this before that can do better job of speculating what it is for. I am going under the assumption that it is an Apple cable, but if anyone has seen a similar cable for the PC or other systems, I'll be happy to entertain those ideas as well. -chris <http://www.mythtech.net>