There is the Yuki plug in different sizes, the EC-X number indicates the size. I knew beforehand and did not order too small a number. Nevertheless, I keep them, because they are simple and practical to use in many places. Anyone who has already plugs / sockets and matching needs, but should pay attention to the number - it is on it also to the blue connector / book packages.
Compared to XT plugs / sockets the Yuki sockets / plugs have the advantage that the housing exposed no live contacts by soldering the cables and plugging. The XT connectors must be used to isolate the solder joints eg rubber grommets that you have to push on cable (before). If I have a choice, I would choose dewegen for Yuki plugs / sockets.