The 7i76e is one of the most popular ways to interface your machine and computer to LinuxCNC. it provides tons of inputs, outputs and an incredible array of expansion capabilities that are useful in building your machine exactly how you want it. I'm not affiliated with Mesa, but I wanted to give an overview of what to expect when using this control board. Products used in my builds (Amazon affiliate links): Idc16 breakout board https://amzn.to/3jH9gaQ Asus vt229 22” touchscreen https://amzn.to/3pJ0quI Planar pct2235 22” touchscreen https://amzn.to/3dI8cTh Dinkle din rail terminal blocks https://amzn.to/3k2KnGM 60mm 100ppr mpg jog wheel https://amzn.to/3pJ177i Momentary button 3 pack (red, green, yellow) https://amzn.to/2NGy5Yr 19mm momentary button 5 pack https://amzn.to/3k7NjSh Angled project box https://amzn.to/2OKAGRB 18awg silicone jacket hookup wire https://amzn.to/2NhhIl 1800 piece crimp terminal and crimper tool https://amzn.to/3aGyKSZ