UNIROI Mini Nano V3.0 CH340G ATmega328P 5V 16M Micro Controller Board for Arduino Nano UKY64 Based on the Atmega328P-AU MCU, support ISP download, USB download and POWER. Using ATmega328P and CH340G, not FT232RL as official Arduino. Support for external 5V ~ 12V DC power supply; Support power supply by 9V battery. Operating Voltage(logic level):5V Improved with 3pcs pin headers (2pcs 15pin headers +1pcs 6pin headers), No welding needed.