Can be used to mount the original Sunlu S8 control board underneath the y-axis. Mounting holes are spaced at 113mm.
I mounted my original board (configured with Klipper) to add more pins to my SKR 1.4 setup for additional thermistors and LED lights. There are no provisions for a cooling fan. Therefore use at your own risk if you're running the onboard stepper drivers.
The author hasn't provided the model origin yet.