Hi, here is a photo of my electronic setup. I tried to clean everything up, as good as possible. I also added a mosfet for the heatbed, to take the load of the board, works perfect.
The drag chain is from UEETEK. I have only the link to the german Amazon site: https://www.amazon.de/gp/product/B07C4NSXDM/ref=oh_aui_search_asin_title?ie=UTF8&psc=1