Ours worked for Twice. Our robot has no shorts, no current through the frame, and no shock to the board. It fried. There are no exact replacements though you can buy an equivelent for around 30 bucks. The only explanation for there spontaneous breakdowns given buy the designer was something that couldve been simply fixed by adding a few components before shipping them out to the teams. I have made equivelent boards and they've never broken down. unfourtunately they r built in to several projects that would be destroyed if i removed them
so i guess were going to have to go with the KOP one.