The Org60 seems to be a variant of the XD60 (which is essentially a GH60 rev. C, with support for a right-hand arrow cluster), which has USB-C and built-in RGB underlighting.
Compatibility with GH60 expansion boards is unknown.
Taken from [r/mk](https://www.reddit.com/r/MechanicalKeyboards/comments/6xsd5c/modification_discovered_the_org60_pcb_has_a/)
MOSFET that drives the in switch LEDs is not connected to a PWM pin. (It is connected to pin F5). Fix mentioned in reddit post re-routes to pin B5. You will have to change the pin to B5 in `config.h`