This is a drum holder that works with Alesis Drum Modules; worked perfectly for both my DM10 and Strike Pro SE module. It should work with most Roland modules as well. I don't know about Yamaha and probably not with newer brands like EFNote.

I added a nut inset for an M5 nut, but frankly I recommend just using a washer over it and the nut like that. See pic.

This works great to put your module on a straight cymbal stand, just remove the top most section and insert this unit.