TP-LINK TG121n USB Wireless Adapter Driver Download

TP-LINK Drivers

The TG121n USB Wireless Adapter is a network device manufactured by TP-LINK. 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 - "TL-WN821N.zip" - has been downloaded 12,015 times and is rated 5 out of 5 stars based on 30 reviews. Our users report success installing this driver update on PCs running Windows 7 and Windows XP. The total disk space used for this update is 16.8 MB.

30 Ratings (see all reviews)
12,015 Downloads

Supported Models

TL-WN821N

802.11N Wireless USB Network Adapter

D-Link DWA-160 Xtreme N Dual Band USB Adapter(rev.A)

IO-DATA WN-GDN/US2

NB 802.11n ABG Wireless LAN USB Adapter(UB82)

NB 802.11n BG Wireless LAN USB Adapter(UB81)

PCI GW-US300GXS

RangeMax Dual Band Wireless-N USB Adapter

Manufacturers

TP-LINK

Arcadyan Technology

D-Link

NETGEAR

Supported Operating Systems

Windows Vista, Windows Vista (64 bit), Windows 2003, Windows 2003 (64 bit), Windows XP, Windows XP (64 bit), Windows 2000, Windows 98SE, Windows 95

File Name

Versions

3.1.0.93 (24-Jul-2008)
3.0.0.129 (2008-09-09) via .inf
3.1.0.93 (2008-07-24) via .inf

Uploaded By

nickpe (DG Member) on 30-Aug-2009

Ratings & Reviews

See all TP-LINK TG121n USB Wireless Adapter ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
TL-WN821N/Driver Files/VistaX64/arusb_lhx.cat 11.5 KB 4 Aug 2008
TL-WN821N/Driver Files/VistaX64/arusb_lhx.inf 27.9 KB 20 Oct 2008
TL-WN821N/Driver Files/VistaX64/arusb_lhx.sys 539.1 KB 24 Jul 2008
TL-WN821N/Driver Files/VistaX86/arusb_lh.cat 11.1 KB 24 Jul 2008
TL-WN821N/Driver Files/VistaX86/arusb_lh.inf 27.8 KB 20 Oct 2008
TL-WN821N/Driver Files/VistaX86/arusb_lh.sys 437.8 KB 24 Jul 2008
TL-WN821N/Driver Files/Win2K/arusb_2k.sys 449.0 KB 22 Oct 2008
TL-WN821N/Driver Files/Win2K/arusb_xp.cat 11.9 KB 8 Sep 2008
TL-WN821N/Driver Files/Win2K/arusb_xp.inf 43.1 KB 20 Oct 2008
TL-WN821N/Driver Files/XP/arusb_xp.cat 11.9 KB 8 Sep 2008
TL-WN821N/Driver Files/XP/arusb_xp.inf 42.1 KB 20 Oct 2008
TL-WN821N/Driver Files/XP/arusb_xp.sys 451.6 KB 22 Oct 2008
TL-WN821N/Driver Files/XP64/arusb_xp.cat 11.9 KB 8 Sep 2008
TL-WN821N/Driver Files/XP64/arusb_xp.inf 42.1 KB 20 Oct 2008
TL-WN821N/Driver Files/XP64/arusb_xpx.sys 558.3 KB 22 Oct 2008
TL-WN821N/QSS-821.exe 6.3 MB 11 Sep 2008
TL-WN821N/Setup.exe 7.2 MB 22 Oct 2008
TL-WN821N/TL-WN821N 2.0 User Guide.pdf 4.2 MB 30 Oct 2008

How to Update TG121n USB Wireless Adapter Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the TG121n USB Wireless Adapter 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 TP-LINK TG121n USB Wireless Adapter 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 TP-LINK 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 TP-LINK 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 TP-LINK. All company names/logos are properties of their owners.
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