Um, did you read the question and answer at the bottom of the auction?
Actually, despite the conflicting dates, that Q&A was not there when I originally posted. However, it actually answers nothing more than yes it could dock with an SE. But it doesn't really shed any light on how this was accomplished, particularly on a Plus, which has no PDS or other expansion slots, not how this actually works or the benefits of using it in this manner. I still don't get that actually, unless it allowed for monitor spanning, in which case that would really be something for 1986 era technology.
However, the Outbound also supported a SCSI docking mode (forget what Apple called it on the PB1xx series) so you could connect your Outbound to a desktop Mac via SCSI cable (if you had the SCSI adapter) and put the Outbound in a mode where it would behave like an external hard drive.
This is also a feature supported by the Portable with an adapter, so I am not surprised. Nevertheless, quite advanced features for a company working outside of Apple. Imagine if they had Apple's capital without the egos.
