UNO R3 MEGA328P CH340G for Arduino Compatible NO USB CABLE
Product introduction
UNO R3 is a microcontroller board based on the ATmega328P .It has 14 digital input/output pins (of which 6 can be used as PWM outputs) 6 analog inputs a 16 MHz quartz crystal a USB connection a power jack an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.. You can tinker with your UNO without worring too much about doing something wrong worst case scenario you can replace the chip for a few dollars and start over again.