How about on my DS5840/VAX6000?  Doesn't have MFM.
Peace...  Sridhar
On Fri, 13 Jul 2001, Brian Hechinger wrote:
  On Fri, Jul 13, 2001 at 07:42:27PM -0400, Master of
all that Sucks wrote:
 Hi.  I seem to find this connector with 50 pins in three rows in a D-shell
 on my VAXservers and VAXstations.  I even have one or two on my DECsystem
 5840.  Could someone tell me what they are?  Three rows.  17 - 16 - 17. 
 it's the MFM "Extention" cable.  you can put external MFM devices on it.
 -brian