Soldered Nano v3.0 atmega328 compatible, Nano Cable USB Mini B to USB A (cable colour might change from the one shown in picture) Microcontroller: Atmel ATmega328P; FTDI FT232rl USB to serial chip Operating Voltage (logic level): 5V Input Voltage (recommended): 7V ~ 12V Input Voltage (limits): 6V ~ 20 V Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current per I/O Pin: 40mA Flash Memory: 32KB (ATmega328) (of which 2 KB used by bootloader) SRAM: 2KB (ATmega328) EEPROM: 1KB (ATmega328) Clock Speed: 16MHz USB to Serial Converter: CH340