For robot I'm designing, I need a vibration proof USB connection between Mega Pro and desktop computer motherboard. I'm using the pro because I'd like to be able to solder in some screw terminals or solder wires directly.
The motherboard, unfortunately, doesn't have a COM port, nor pins for one. So I have to convert to USB.
Only thing I don't like about the pro, is the SMD FTDI header. Once that breaks off, you're almost dead in the water.