Keywish Nano Terminal Expansion Adapter Board for Arduino Nano V3.0 AVR ATMEGA328P (5PCS)

My situation is a bit different, as I didn't use these boards as terminal shields for Arduino Nano. Instead, I used them to make some custom diode boards for a home automation project. I can say that the boards seem to be of good quality, and all of the solder points were nice and clean. My only complaint would be that the mounting screw holes were smaller than a standard 3.5mm, which might not be an issue if using them as the manufacturer inteded. I had to drill them out for my particular situation, and the holes actually have a metal bushing in them. This made drilling a little more difficult, but it worked out great in the end. If anyone is wondering about the quality of these boards, I can confidently say that they are well built, and should serve the user well. I'd definitely purchase them again if I needed them for a similar project, or as an Arduino Nano shield.