Keyspan USA-28x Documentation Download (Official)
Supported Models
USA-28x
Manufacturers
Supported Operating Systems
Mac OSX
File Name
Additional Notes
Mac OS 8.6 - 9.x
This file contains version 1.9 of the Keyspan USB Twin Serial Adapter installer.
Manual Driver File
Release Notes:
* improves overall serial communications
* IMPORTANT INFORMATION for Mac OS X users: If you are running Mac OS X and want to use your Keyspan serial adapter in 'Classic', do NOT install the Mac OS X software.
Uploaded By
Alagappan (DG Staff Member) on 9-Apr-2005
Related Driver Updates
How to Update USA-28x Device Drivers
Step 1 - Download Your Driver
To get the USA-28x 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 Keyspan USA-28x 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 Keyspan 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 Keyspan website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
After you get your new driver, you need to put it on your computer. On Windows, there's a tool called Device Manager that helps with this. It shows you all the parts of your computer and the drivers they use. To finish setting up the new driver, you'll probably need to turn your computer off and on again.
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.