TP-LINK TG121n USB Wireless Adapter Driver Download

30 Ratings (see all reviews)

Supported Models

TL-WN821N Driver

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


NB 802.11n ABG Wireless LAN USB Adapter(UB82) Driver

NB 802.11n BG Wireless LAN USB Adapter(UB81) Driver

PCI GW-US300GXS Driver

RangeMax Dual Band Wireless-N USB Adapter Driver

RangeMax Wireless-N USB Adapter WN111v2 Driver

TG121n USB Wireless Adapter Driver

TP-LINK TL-WN821N 11N Wireless Adapter Driver



Arcadyan Technology



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 (16.8 MB)

Versions (24-Jul-2008) (2008-09-09) via .inf (2008-07-24) via .inf

Find Related Drivers

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/ 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/ 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/ 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/ 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/ 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 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 Driver Update Utility for TG121n USB Wireless Adapter. 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 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.

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