Nano V3.0 ATMEGA328P FT232RL FTDI
Nano V3.0 boards with Atmega328P chipset and FTDI serial USB chip The NanoV3 FTDI chipset has a unique serial number, which is necessary if several Nanos are to be used on one Raspi.
If you need the Nano with firmware, this can be ordered here under Firmware. The firmware and serial number can also be changed or updated. The drivers, firmware and the program to flash the Nano are available for download in the support area.