I purchased a few from Tacoma56, he is here on this forum but the name is a bit different and cant remember it off hand..
The SMpro version with 4 external controls works very well. I have the schematic for it if some one wants it I can send it to them or better yet, I can just post it here.
It is called SM Pro but the pcb and schematic are called Surf XX, at least thats what is on the board itself.
Schematic SM Pro Surf XX PI by J.Owens

SM Pro Surf XX pcb image
The SMpro version with 4 external controls works very well. I have the schematic for it if some one wants it I can send it to them or better yet, I can just post it here.
It is called SM Pro but the pcb and schematic are called Surf XX, at least thats what is on the board itself.
Schematic SM Pro Surf XX PI by J.Owens
SM Pro Surf XX pcb image
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