You are getting the following:

You connect the power cable, usb, vga and rca from the naomi to the I/O board and then connect the jamma harness and that's all you need to make it work.  Kick harness and power supply not included: You can use the power from the Jamma harness if you have it installed. 

This game was cleaned and tested for 8 hours, please see the pictures and video.
Supergun, monitor and power supply not included, only showing that the game is working

Ask any questions before  buying.