Prolific USB-to-Serial Comm Port Driver Download

Prolific Drivers

The USB-to-Serial Comm Port is a device manufactured by Prolific. You can unlock features and improve performance by updating its driver. This version of "" is rated (5 out of 5 stars) based on 3,532 downloads and 14 reviews. Visitors have successfully installed this driver on PCs running Windows 8, Windows Vista and Windows XP. The total disk space used for this update is 1.9 MB.

14 Ratings (see all reviews)

Supported Models

rolific USB-to-Serial Bridge

Prolific USB-to-Serial Bridge

Prolific USB-to-Serial Comm Port

USB to Serial Port



Supported Operating Systems

Windows Vista, Windows Vista (64 bit), Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95

File Name

Versions (2005-07-25) via .inf

Additional Notes

rolific USB-to-Serial Bridge

Uploaded By

fabio (DG Member) on 25-Jun-2008

Ratings & Reviews

See all Prolific USB-to-Serial Comm Port ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
PL2303 USB Driver/DRemover98_2K.exe 135.4 KB 7 Nov 2001
PL2303 USB Driver/PL-2303 Driver Installer.exe 1.7 MB 3 Aug 2005
PL2303 USB Driver/SER2PL.SYS 48.6 KB 24 Jul 2005
PL2303 USB Driver/SER9PL.SYS 35.9 KB 3 Aug 2005
PL2303 USB Driver/SERSPL.INF 2.3 KB 23 May 2001
PL2303 USB Driver/SERSPL.VXD 26.7 KB 3 Aug 2005
PL2303 USB Driver/SERWPL.INF 8.6 KB 8 Aug 2005
PL2303 USB Driver/USB DATA CABLE Driver Install manual.doc 266.2 KB 4 Jan 2006
PL2303 USB Driver/ 7.8 KB 1 Aug 2005
PL2303 USB Driver/ser2pl.inf 1.9 KB 24 Jul 2005

How to Update Prolific USB-to-Serial Comm Port Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Prolific USB-to-Serial Comm Port 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 Comm Port 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 Prolific Driver Update Utility. 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 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 Prolific. All company names/logos are properties of their owners.
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