Review on Kuman UNO R3 Board ATmega328P with USB Cable - Compatible With Arduino UNO R3 Mega 2560 Nano Robot for Arduino IDE AVR MCU Learner K53, Blue by Roger Alexander

I bought two of these, one as a set and one separately (this item). I also have some original Arduino Unos. This device is good. The build quality is not perfect, but acceptable. The pin headers are not perfectly aligned, the power connector is slightly misaligned, and the soldering part is inconsistent. BUT IT WORKS. I am very happy with the purchase, I will probably buy more. If you want undeniably superior build quality, buy a real Arduino. If you're okay with "just enough" for less than half the price, this article is for you.