UNIROI ATmega328P CH340G Development Board for Arduino UNO R3 Arduino IDE Development Kit Robot Part Microcontroller with Straight Pin Header 2.54mm Pitch and USB Cable UA041 Main Chip: ATmega328P, CH340G. Please feel free to contact if you need the CH340 driver. Completely solve the traditional incompatibility and instability of the UNO R3 to Win7 and Win8 system. 100% compatible with Arduino, work with the software at arduino.cc. Easier to use, designed with pins socket for inserting DuPont wire. Supports both 3.3V & 5V Power Supply. It can meet different IO expansion requirements, including temperature humidity sensor, Xbee module, BT Bluetooth module, RF module, GPRS module, GPS module, LCD shield and so on.