That looks like an older version of the Mana SE controller. It’s really just an Arduino Nano, so it should be easy to re-flash it with GRBL. I don’t think Benbox is fully GRBL compatible, and LightBurn actually looks for specific response messages from the controller, so even minor differences could cause issues. It might work with the GRBL-M3 device - that would be the most likely option, but I can’t say for sure if that will work.