Mega 2560 R3 CH340/ATmega2560-16AU - compatible with Arduino Mega 2560 board. Built on the ATmega2560 microcontroller and USB-UART interface chip CH340G. Board for functionality similar to the Arduino Mega 2560. It is a budget, but the same stable, and uses the original chips ATmega2560 (16 MHz). The board used the chip CH340G as converter UART-USB. Chip CH340G - is a budget solution. When you work in the frequency 12Mhz, giving a stable result of data exchange (need install drivers to computer). Mega 2560 CH340G / ATmega2560 - connects to the computer via microUSB cable (used for almost all Android smartphones). You can supply power to board through a MicroUSB connector or XH power socket (cable with XH connector included). The voltage regulator (LDO) can deal with incoming voltage from 6V to 12V DC. Output current for 5V - about 800mA, for 3.3V - about 350mA (Please note that the higher the input voltage the lower the outgoing current). That will provide a reliable power most of your initial projects.

• Arduino Mega 2560 Rev3 form-factor, ATmega 2560 (16Mhz), a microcontroller
• CH340G - USB-UART interface
• Input voltage 6-12V; Output voltage 5V - 800mA, 3.3V - 350mA
• MicroSUB - connection socket
• 70 digital I/O; 16 analog inputs, 14 PWM,4 bus of UART

Arduino Mega 2560 Rev3 form-factor, ATmega 2560 (16Mhz), a microcontrollerZhuhai RobotDyn Technology Co.,Ltd (China)