I wonder if the original poster doesn't have the original Apple 17" Multi-Sync Color Display. This was identical to the Apple 16" Color Display, except that it supported multiple resolutions, where the 16" only supported 832 X 624.
In both of the above mentioned monitors, the rather large base had ADB ports and speaker and microphone ports built into the base. However, the base was more or less a passive hub. There was nothing special about the arrangement. The upper monitor had a normal DB15 Mac video cable. The base of the monitor could except an ADB cable from the computer in a plug at the back and then the two front ADB plugs were active for peripherals. The sound ports were similar.
Anyway, I could be completely wrong, but I think the OP has this older 17" monitor with the funky base. It was shaped (the base) a bit like a short rectangle with part of a circle sitting on top if you looked at it from above.
In both of the above mentioned monitors, the rather large base had ADB ports and speaker and microphone ports built into the base. However, the base was more or less a passive hub. There was nothing special about the arrangement. The upper monitor had a normal DB15 Mac video cable. The base of the monitor could except an ADB cable from the computer in a plug at the back and then the two front ADB plugs were active for peripherals. The sound ports were similar.
Anyway, I could be completely wrong, but I think the OP has this older 17" monitor with the funky base. It was shaped (the base) a bit like a short rectangle with part of a circle sitting on top if you looked at it from above.