3Com Kingston Technology USB Ethernet Adapter Driver Download

3Com Drivers

The Kingston Technology USB Ethernet Adapter is a network device manufactured by 3Com. 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 - "3C19250_XP.exe" - has been downloaded 7,745 times and is rated 5 out of 5 stars based on 57 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 59.4 KB.

57 Ratings (see all reviews)

Supported Models


3Com 3C19250 (But no bloody thanks to 3COM!)

ADS USB-Ethernet Adapter

ASANTE USB To Ethernet Adapter

ATEN USB-Ethernet Adapter

Endpoints USB Ethernet Adapter

Entrega USB Ethernet Adapter

Jaton USB Ethernet Device Adapter



Kawasaki LSI U.S.A.


Supported Operating Systems

Windows XP

File Name

Versions (2001-07-01) via .inf

Additional Notes

Self-extracting ZIP should give two files



These are from the Windows XP Pro CD - the inf has been slightly modified to recognise the 3COM VendorID and load the Kawasaki driver - I even annotated the changes -)

Stick the two files in the location of your choice and choose the

"Install from a list or specific location (advanced)" option.

See also




Uploaded By

Phil Hornby (DG Member) on 16-Dec-2001

Most Helpful Reviews

4 of 5 people found the following review helpful:
Tested on Windows XP
12 Jun 2005

Installation: 5 out of 5
Stability: 5 out of 5
Compatibility: 5 out of 5
"driver working excellent condition."
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See all 3Com Kingston Technology USB Ethernet Adapter ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
usb101et.sys 31.4 KB 17 Aug 2001
netklsi.inf 9.2 KB 16 Dec 2001

How to Update Kingston Technology USB Ethernet Adapter Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Kingston Technology USB 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 3Com Kingston Technology USB 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 3Com 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 3Com 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 3Com. All company names/logos are properties of their owners.
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