You can download this untility in ASUS support site: http://www.asus.com/support/ according to your specific model.
*Enter product's model name-> Support-> Driver & Tools-> Select OS-> Utilities-> ASUS AI Suites 3.
AI Suite 3 is an all-in-one interface that integrates several ASUS utilities and allows you to launch and operate these utilities simultaneously.
Ensure that you have an Administrator account before installing AI Suite 3 in Windows 7 or Windows 8 OS.
To install the Wi-Fi-enabled features of AI Suite 3, ensure that you install the Wi-Fi module driver from the bundled Support DVD. To do this, go to Driver tab > ASUS Bluetooth 4.0 Wi-Fi Driver and follow the succeeding onscreen instructions.
Full Specifications
What's new in version 3.0
General
ReleaseApril 4, 2017
Date AddedApril 4, 2017
Version3.0
Operating Systems
Operating SystemsWindows, Windows XP, Windows Vista, Windows 7