That bob is huge!

I (being biased) still think for being under 200 euros the 5i25+7i76 gives you a lot more flexibility. The daughter board gives you..

The 7I76 is daughtercard/breakout board for use with MESA's 25 pin I/O FPGA cards like the 5I25. The 7I76 is designed for interfacing up to 5 Axis of step & dir step motor or servo motor drives and also provides a spindle encoder interface, isolated analog spindle speed control and 48 isolated I/O points for general purpose field I/O use. All step and direction outputs are buffered 5V signals that can drive 24 mA. All outputs support differential mode to reduce susceptibility to noise. An isolated analog spindle voltage with direction and enable outputs is provided for spindle control as is a single spindle encoder channel with TTL or differential inputs. 48 points of isolated field I/O are provided for general control use including limit switch and control panel inputs, coolant enable and tool changer control outputs. Isolated I/O includes 32 sinking inputs and 16 sourcing outputs. Inputs can sense 5V to 32V signals and the outputs can switch 5V through 28V signals. Maximum output load is 300 mA. Outputs are short circuit protected. In addition to the being able to read digital on/off status of each input, four input pin voltages are readable with 8 bit resolution, and two MPG encoder inputs are provided as an option on four field inputs. Field I/O is powered by an isolated 10-32V field power source. One RS-422 interface is provided for I/O expansion via a serial I/O daughtercard. All field wiring is terminated in pluggable 3.5 mm screw terminal blocks.

Plus it is expandable be it the 2nd port on the 5i25 or the smart serial port on the 7i76. (not to mention if you want to go full closed loop servo the 7i77 daughter board is for you)

Did I mention that I love mesa hardware? It is well built and 'just works' tm

Other similar solutions are going to be more money like ESS+C23.. (plus - who wants to rigid tap? :) )

most have seen this - linuxcnc + mesa (my conversion of old K&T HMC) 4 axis + 96 i/o (full closed loop) Still running great.

https://www.youtube.com/watch?v=39q6kvrSBSk

sam