This is probably the best hundred dollars I've spent in decades.  I've been building and repairing PCs for over thirty years and I bought this to control my laser engraver.  However, when my gaming computer crashed, I needed to have a computer in my office.  So, I temporarily diverted this machine from its intended assignment while rebuilding my monster ATX desktop.  I figured I could 'put up with it' in the interim, but it surprised me with it's performance.  I am happy I made this choice.