Sunrise Cicada 10A 4-in-1 ESC

This is the best 4 in 1 micro ESC right now since there's really not another option. They look similar to the Racerstar 6a and may be from the same manufacturer. Not, this 4in1 does not have a BEC. The mounting holes are 20x20mm and come with m2.5 harware. The holes will fit m3 screws but you'll have to trim your spacers or standoffs to clear the caps components. I found using rubber o-rings the best way to mount this with the lowest stack height possible.

4-in-1 are the way to go. less weight means more speed!!

A great 4in1 esc for micro brushless builds!