DFRobot UNO R3 Board Compatible with Arduino Uno R3 | ATmega328P-PU Microcontroller + ATMega16U2 USB Communication

I got this one back working, but it arrived in a generic plastic bag inside the Amazon box. No attempt by the manufacturer to quality control there.3 pins were bent badly, and several solderings on both sides were highly insufficient. At first, I thought I had a dead unit, but after testing and making repairs on this 'brand new' product, I was able to make it work.I wouldn't but this.

The DFRduino had an error on download of a standard program.