Overview
The MK1 is a 3-Axis breakout controller the maps a 10pin input port connector for X, Y and Z to three individual output ports compatible with the MM120, MM130, MM160 and MM220.  The USB10M can be connected and drive the MK1.  The MK1 does not support limit switch inputs or auxiliary outputs. 

The picture below shows the MK1 connector pin assignments.

The picture below shows the MK1 attached to a USB10 USB 2.0 communications controller and WaspARM7 embedded processor.  Configurations like this can be used to create custom stepper motor control applications.

MK1 with three MM130's attached controlled by a USB10 communications controller.