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
Support USB download and Power; external 5V ~ 12V DC power supply;power supply by 9V battery; Support ISP download

2011 Driver version 3.3.2011.11 for Windows 7:
osoyoo.com/driver/CH341SER.zip
2014 Driver version 3.4.2014.8 for Windows 8+:
http://www.arduined.eu/ch340-windows-8-driver-download/
The new driver CH34x_Install.zip for Mac OS-X El Capitan:
kig.re/downloads/CH34x_Install.zip
Older Driver for MAC:
kig.re/downloads/CH341SER_MAC.ZIP

Package included:
3* Nano V3.0 ATmega328P CH340G Controller Board

How to use it:
1. Download Arduino IDE.Address: Http://arduino.cc/en/Mai
2. Download USB chip Driver.Address: http://www.wch-ic.com/download/list.asp?id=126
3. Plug in the Nano Development Board, the driver will automatically install
4. Select the board NANO in die
5. Select COM port, this can be in My computer query, just your UNO development board inside the port
6. It is best to choose First, Arduino with the example of the routine, burn into Apple's official question and answer post has solutions, at the end of the post there are solutions, URLs: https://discussions.apple.com/thread/7677725?start=0&tstart=0, Inside said go to GitHub can find the latest people do mac driver, GitHub URL is as follows: Https://github.com/adrianmihalko/ch340g-ch34g-ch34x-mac-os-x-driver