MEGA 2560 R3 ATmega2560 R3 CH340G AVR USB board Development board For MEGA 2560 R3

CH340G Replace ATMEGA16U2  
Microcontroller:ATmega2560  
Operating Voltage:5V  
Input Voltage (recommended):7-12V  
Input Voltage (limits):6-20V  
Digital I/O Pins:54 (of which 15 provide PWM output)  
Analog Input Pins:16  
DC Current per I/O Pin:40 mA  
DC Current for 3.3V Pin:50 mA  
Flash Memory:256 KB of which 8 KB used by bootloader  
SRAM:8 KB  
EEPROM:4 KB  
Clock Speed:16 MHz