3-Axis CNC Controller for Mills SZGH brand

I installed this CNC controller on an old CNC knee-mill and used it for a couple of years. My machinist hated it so I replaced it with an American-made CN controller. THIS CONTROLLER IS NOT FOR FIRST-TIME INSTALLERS!!!! ALSO, THIS CONTROLLER IS OPEN-LOOP. THE ENCODER FEEDBACK MERELY ALERTS THE USER TO A PROBLEM, NOT TO ENSURE ACCURACY. You can download the manuals from SZGH. All cables that came with the controller are included.