ADMtek ADM851X USB To Fast Ethernet Adapter Driver Download

ADMtek Drivers

The ADM851X USB To Fast Ethernet Adapter is a network device manufactured by ADMtek. 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 version of "" has been downloaded 2,800 times with a user rating of 5 out of 5 stars, based on 20 reviews. Visitors have successfully installed this driver on PCs running Windows Vista and Windows XP. The total disk space used for this update is 20.9 KB.

20 Ratings

Supported Models


ADM851X USB To Fast Ethernet Adapter



Supported Operating Systems

Windows Vista, Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95

File Name


2.11.1027.2004 (2004-10-27) via .inf

Additional Notes

works for ultranet un8015 v2.0

Uploaded By

preston (DG Member) on 16-Mar-2007

How to Update ADM851X USB To Fast Ethernet Adapter Device Drivers

Step 1 - Download Your Driver

To get the ADM851X USB To Fast Ethernet 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 ADMtek ADM851X USB To Fast Ethernet 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 ADMtek 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 ADMtek website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Installing your newly downloaded driver is a straightforward process. Windows provides a dedicated tool called Device Manager for this purpose. Follow these steps to update your driver:

  1. Access the Quick Access menu by right-clicking the Start button.

  2. From the menu options, choose "Device Manager".

  3. Within Device Manager, identify the device requiring the driver update.

  4. Open the context menu for the device by right-clicking its name.

  5. Select "Update driver" and proceed through the guided installation.

To complete the process, reboot your computer. This ensures the new driver is fully integrated into your system.

Regular driver updates contribute to optimal system performance and hardware compatibility.

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.

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
2.11.1027.2004/211_WHQLID.txt 67 bytes 10 Jan 2005
2.11.1027.2004/Driver/ADM851X.sys 22.1 KB 27 Oct 2004
2.11.1027.2004/Driver/NET851X.CAT 8.1 KB 18 Nov 2004
2.11.1027.2004/Driver/NET851X.INF 10.8 KB 27 Oct 2004
This website is not affiliated with ADMtek. All company names/logos are properties of their owners.
server: web3, load: 1.72