Package Include:
1 x UNO R3  ，NO usb Cable

Hereby declare:
In the same performance guarantee NANO and master chip ATMEGA328P-AU same premise， We replaced the USB chip，Improved download speed， Increase the stability of the win7 win8.but it does not support MAC

Usage:
1 download for arduino \'s IDE
2 USB chip driver download;
3 Plug NANO development board， the driver will automatically install
4 Select the card inside the die NANO
5 Select the COM port that my computer can query your NANO board just inside the port
6 best first choice ， for arduino own routine procedures ， burn inside.

Advantages :

1. a completely solve the traditional UNO board is not compatible with win7 and win8 system instability above .

2.  increase the pin socket ， to facilitate the use of DuPont line.

3 . Replaced 16u2， so the cost is reduced by half， to get the maximum benefit consumers