Features: CH340G replace FT232RL Operating Voltage(logic level): 5V 8 analog inputs ports: A0 ~ A7 14 Digital input / output ports: TX, RX, D2 ~ D13 6 PWM ports: D3, D5, D6, D9, D10, D11 1 pairs of TTL level serial transceiver ports RX / TX Using ATMEL Atmega328P-AU MCU. There is bootloader installed in it. Support USB download and Power Support for external 5V ~ 12V DC power supply Support power supply by 9V battery. Brand: Other, CPU Speed: 1.60 GHz, Processor Family: AMD A10 Series, Number of Cores: 2, Model Number: ATmega328, Are batteries needed to power the product or is this product a battery: No, Is this a Dangerous Good or a Hazardous Material, Substance or Waste that is regulated for transportation, storage, and/or disposal?: No.