link: http://www.ebay.com/itm/272480403564 Board is very clean, apparently this was intended to interface a MITS-branded Centronics C700 printer to the S-100 bus. I can't find much documentation for it, and I don't have any software that would use it, so it's only electrically tested: it has been plugged in to my IMSAI, it doesn't overcurrent, cause bus conflicts, et c., but HAS NOT BEEN TESTED FURTHER due to a lack of equipment, documentation and software! The ribbon cable that came with it is included. Definitely used, it has embedded dust/dirt, a few splits in the ribbon (but no worn insulation). There's some sort of panel transition fitting in the middle, it's not apparent whether this is permanent or can be separated. It didn't come apart easily, and I didn't pry. Thanks, Jonathan