ASUS A9T Driver Download (Official)

ASUS Drivers

The A9T is a network device manufactured by ASUS. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. This driver - "" - has been downloaded 191 times and is rated 5 out of 5 stars based on 7 reviews. Our users report success installing this driver update on PCs running Windows 7. The total disk space used for this update is 1.2 MB.

7 Ratings

Supported Models


802.11b/g USB Wireless Network Adapter

ASUS USB Wireless Network Adapter



Supported Operating Systems

Windows XP

File Name

Versions (25-Apr-2006) (2006-04-13) via .inf (2005-11-09) via .inf

Additional Notes


A9 Series

ASUS WLAN Driver and Application

Uploaded By

RajeshP (DG Staff Member) on 27-Apr-2008

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Driver/ZD11BU2K.SYS 423.9 KB 13 Apr 2006
Driver/ZD11BU64.sys 519.3 KB 13 Apr 2006
Driver/ZD11BUXP.SYS 425.0 KB 13 Apr 2006
Driver/ZD11U2K.sys 278.0 KB 9 Nov 2005
Driver/ZD11U64.sys 352.5 KB 9 Nov 2005
Driver/ZD11U98.sys 278.0 KB 9 Nov 2005
Driver/ZD11UME.sys 278.0 KB 9 Nov 2005
Driver/ZD11UXP.sys 278.5 KB 9 Nov 2005
Driver/ZD1211BU.CAT 8.7 KB 24 Apr 2006
Driver/ZD1211BU.INF 16.5 KB 14 Apr 2006
Driver/ZD1211U.CAT 8.8 KB 9 Dec 2005
Driver/ZD1211U.inf 15.0 KB 9 Nov 2005
Inf.ini 966 bytes 7 Mar 2006
Install.exe 49.2 KB 18 Mar 2004
Remove.exe 184.4 KB 24 Sep 2003
Resume.exe 17.9 KB 11 Jun 2003

How to Update A9T Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the A9T driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter ASUS A9T into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the ASUS Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the ASUS website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with ASUS. All company names/logos are properties of their owners.
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