UNO-MEGA2560-R3 :
The Uno MEGA 2560 R3 SMD Board Improved Version CH340 Chip
The Uno MEGA 2560 R3 SMD Board Improved Version CH340 Chip
The mega is 100 Percent compatible with Aduino and most shields designed for the Aduino Mega2560 R3.
The chip is CH340, which is improved version.
It contains everything needed to support the microcontroller simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.