Review on 🔑 Enhanced KEYESTUDIO Mega 2560 R3 Arduino Board for Project Development, Including USB Cable by Michael Bustamante

I've had good luck with Keystone products. Addendum: I've had pretty good maintenance for this unit as long as I kept it connected to a 5V power supply. I recently had to connect it to a 12V (actually 11.2V) power supply via the VIN pin (which I need to do in almost all of my projects) and found that the 5V rail was doing almost 8V pressed. This fried a couple of stepper motor controllers. Bottom line: if you're using it to do small chores, plugged into a well-regulated power supply via an outlet, it's no problem. But if you decide to do something more serious, DO NOT rely on the 5V rail to be 5V. I didn't have this problem with keyStudios uno so I guess it's just mega.