multisystem extention interface bus

from The Free On-line Dictionary of Computing (8 July 2008)

Multisystem eXtention Interface Bus
MXI
MXIbus

   <hardware> (MXIbus) A high performance communication link that
   interconnects devices using round, flexible cable.  MXIbus is
   used between a {GPIB} card and a {VXI} cage.

   (1999-10-12)