Breakout board recommendations

[magicniner]

The board I have looks identical to the cnc4you kk01 board

Some details here like where from, what model and how much would help the OP.
All cheapo BOBs are not equal and you're more likely to toast a rubbish BOB trying to persuade it to work than a good one which works as advertised and has decent documentation,

My little benchtop mill has an old Routout CNC box running it, inside the box are 4 axis controllers and an unbuffered BOB! It's been working for a very long time on multiple PCs without issues ;-)

- Nick