The Nano is using the chips 328P and CH340, not FT232 as official Arduino. It works just like the original Nano board and is very cost-effective for beginners. Uses 328p-AU as MCU, support ISP download; Support USB download and power supply. Compatible with Arduino Nano, fully compatible with Windows, Mac and Linux operating systems. The Nano board can be powered via a mini USB connection; 6-12 V unregulated external power supply or 5 V regulated external power supply. The Nano automatically detects and switches to the power source with higher potential, no power selection jumper is required. The Nano board has 14 digital I/O pins (6 of which can be used as PWM outputs), 6 analogue inputs, a 16MHz quartz oscillator, a mini USB power socket, an ICSP port and a reset button. The Nano board has numerous possibilities for communication with a PC or other microcontrollers and is fully compatible with the operating systems Windows, Mac and Linux. This board is particularly breadboard friendly and the connections are very easy to handle.