
Uno R3 - has additional analog pins A6 & A7 compared with Arduino Uno.
Uno R3 CH340G/ATmega328 - compatible with Arduino Uno R3 board. Built on the Atmel ATmega328 microcontroller and USB-UART interface chip CH340G.
Board for functionality similar to the Arduino Uno (ATmega328).
The board used the chip CH340G as converter UART-USB (need install drivers to computer).
Uno R3 CH340G/ATmega328 - connects to the computer via microUSB cable.