On Thu, Nov 4, 2010 at 10:12 PM, Dave McGuire <mcguire at neurotica.com> wrote:
  ?Given the styling of that box, matching IBM PC and XT
machines, I'd really
 be surprised if it were SCSI. ?I'd guess it were some sort of
 proprietary-interfaced expansion box.
 ?That said, early (but almost a decade later than early IBM PCs) Sun
 machines used those DD-50 connectors for both SCSI and IPI interfaces.
 ? ? ? ? ? ? -Dave 
I thought I saw a 50-pin ribbon cable in there.  I might be wrong
though.  I could always yank the cable and connectors and replace it
with some scsi cabling.  I've also considered putting a mini itx
motherboard in there.
brian