@modellermark2 The Insma K4-3W arrived, wow it is tiny. The bad news is it's not Grbl or G-code compatible, it uses a STM32F running some proprietary interpreter. It appears to have a very limited command set and essentially takes a raster image and stores it to internal memory and then processes it. There is no support for vector, although I can jog the motors there's no actual control on distance or anything useful to enable it to work correctly.
I don't think it's worth the engineering time to support these, the included software does pretty much all the machine is capable of. I may write my own software just because I don't like theirs but I would not integrate with T2Laser as there's no point since most functions aren't possible. This is still a fun toy and very simple, the laser actually looks pretty good for the low price.
The board has 4 x L9110B motor drivers (to run the steppers) a standard CH340 UART (the C model with internal crystal) and the STM32F 32-bit RISC ARM microcontroller (which looks like a Chinese copy).
I've attached a picture of the controller.