Korg EXB-MOSS board Model #KLM-2076 for Triton, tested and working. USA seller!
Flip the Triton over and unscrew the silver plate on the bottom of the keyboard. Then screw in the board & plug it in. You will see the MOSS board installed on the Triton's boot up screen under "Options" when you start up your Triton, as shown in my sixth picture.