For mac : kiguino.moos.io/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
For windows www.jens-bretschneider.de/aktuelle-treiber-fur-seriell-zu-usb-adapter/
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 well MAC.