Prolific USB-to-Serial Bridge Driver Download
Supported Models
HU-709D Driver
Prolific USB-to-Serial Bridge Driver
USB to Serial Port Driver
Manufacturers
Supported Operating Systems
Windows XP, Mac OS
File Name
Versions
2.0.0.24 (1-Dec-2003)
Find Related Drivers
Uploader Notes
Under WinXP, I launched Device Manager, right clicked the USB to serial device that had a yellow exclamation mark, hit 'Update Driver'. Checked 'Install from a specific location', browsed to the extracted files and hit OK. Done.
Uploaded By
Jolly Joffer (DG Member) on 10-Apr-2006
Device Hardware IDs
Compatible IDs
Related Driver Updates
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| HU-709D_Windows_and_more/HU-709D_Mac.zip | 34.1 KB | 10 Apr 2006 |
| HU-709D_Windows_and_more/HU-709D_Mac.zip/MAC/Classic/Setup.sit | 9.0 KB | 17 Jul 2001 |
| HU-709D_Windows_and_more/HU-709D_Mac.zip/MAC/OS X/PL2303_1.0.8b4.pkg/Contents/PkgInfo | 8 bytes | 17 Feb 2004 |
| HU-709D_Windows_and_more/HU-709D_Mac.zip/MAC/OS X/PL2303_1.0.8b4.pkg/Contents/Resources/English.lproj/PL2303_1.0.8b4.info | 291 bytes | 17 Feb 2004 |
| HU-709D_Windows_and_more/HU-709D_Mac.zip/MAC/OS X/PL2303_1.0.8b4.pkg/Contents/Resources/PL2303_1.0.8b4.bom | 35.6 KB | 17 Feb 2004 |
| HU-709D_Windows_and_more/HU-709D_Mac.zip/MAC/OS X/PL2303_1.0.8b4.pkg/Contents/Resources/PL2303_1.0.8b4.pax | 87.0 KB | 17 Feb 2004 |
| HU-709D_Windows_and_more/HU-709D_Mac.zip/MAC/OS X/PL2303_1.0.8b4.pkg/Contents/Resources/PL2303_1.0.8b4.sizes | 49 bytes | 17 Feb 2004 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip | 116.6 KB | 10 Apr 2006 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip/WINDOWS/SER9PL.sys | 34.3 KB | 27 Oct 2003 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip/WINDOWS/SERSPL.INF | 2.3 KB | 23 May 2001 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip/WINDOWS/SERSPL.VXD | 26.7 KB | 27 Oct 2003 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip/WINDOWS/SERWPL.INF | 8.6 KB | 25 Feb 2004 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip/WINDOWS/Uninstall.exe | 135.2 KB | 7 Nov 2001 |
| HU-709D_Windows_and_more/HU-709D_Windows.zip/WINDOWS/ser2pl.sys | 43.1 KB | 1 Dec 2003 |
How to Update Prolific USB-to-Serial Bridge Device Drivers Quickly & Easily
Step 1 - Download Your Driver
To get the Prolific USB-to-Serial Bridge 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 Prolific USB-to-Serial Bridge 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 Prolific USB-to-Serial Bridge. It is a software utility which automatically finds and downloads the right driver.
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
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
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.