Note Type
Installation NoteNote
It's actually a hybrid of a MFX2 and MFX3 system. The "musical" CMI III developed first into a hard drive disc recorder/editor called MFX2 (which could still sample and play music), then later into the MFX3 which was a totally dedicated disc recorder/editor with no musical capabilities.
What you have is a mash-up of both of these. It has 10 channels of musical CMI III, and 12 channels of MFX3 disk recording. However, at the moment I can't see how one would be able to play music on this, as the later MFX3 I/O module didn't support musical capabilities (see my image of what the MIDI I/O panel looks like on a conventional CMI III).
Long shot is that it could be converted to a CMI III, however you'd need a few extra bits ...