Hi,
I need your experience on choosing breakout board.i am going to use Ess and thinking a double port bob like the c23 or the pmdx 126.i do not know if there are any other options but can someone please suggest one or post his experience with one of them?

First of all i think that the optoisolation is a must. Is it wright?
Second, the single optoisolated c11 is priced about the 2/3 the price of a double port card so why not to have extra features?

Is the pmdx needs an extra card for Outputing an analogue 0— 10v for spindle condrol and the c23 not?

Thanks