Pharos Prolific USB-to-Serial Comm Port Driver Download

Pharos Drivers

The Prolific USB-to-Serial Comm Port is a network device manufactured by Pharos. 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 "" is rated (5 out of 5 stars) based on 6,257 downloads and 23 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 2.0 MB.

23 Ratings (see all reviews)

Supported Models


Microsoft USB GPS Port

Prolific USB-to-Serial Comm Port

USB to Serial Port




Supported Operating Systems

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

File Name

Versions (2002-04-09) via .inf (2004-07-20) via .inf

Additional Notes

The driver is copy from Microsoft Streets & Trips 2006 with GPS Locator.

They are for Windows 98, ME, NT, 2000 and XP. Folder name "Old" is download from Pharos website.

Uploaded By

Ming-Jen Chen (DG Member) on 24-Dec-2005

Ratings & Reviews

See all Pharos 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
GPS-360/98_ME/SER9PLMS.sys 34.3 KB 2 Sep 2005
GPS-360/98_ME/SERSPLMS.VXD 26.7 KB 2 Sep 2005
GPS-360/98_ME/sersplms.INF 2.3 KB 2 Sep 2005
GPS-360/98_ME/serwplms.INF 942 bytes 2 Sep 2005
GPS-360/NT_XP/ 7.8 KB 2 Sep 2005
GPS-360/NT_XP/ser2plms.inf 1.5 KB 2 Sep 2005
GPS-360/NT_XP/ser2plms.sys 42.2 KB 2 Sep 2005
GPS-360/Old/98ME2k/DRemover98_2K.exe 135.4 KB 6 Mar 2001
GPS-360/Old/98ME2k/SERWPL.INF 2.6 KB 30 May 2002
GPS-360/Old/98ME2k/Win2K/ser2pl.sys 39.6 KB 9 Apr 2002
GPS-360/Old/98ME2k/Win98_ME/SER9PL.sys 27.3 KB 7 Jan 2002
GPS-360/Old/98ME2k/Win98_ME/SERSPL.INF 2.3 KB 23 May 2001
GPS-360/Old/98ME2k/Win98_ME/SERSPL.VXD 26.7 KB 7 Jan 2002
GPS-360/Old/98ME2k/readme.txt 612 bytes 12 Apr 2002
GPS-360/Old/PL-2303 Driver Installer.exe 1.7 MB 25 Aug 2003
GPS-360/Old/XP/DrvRemover.exe 151.8 KB 13 Sep 2000
GPS-360/Old/XP/WINXP.doc 236.5 KB 24 Dec 2005
GPS-360/Old/XP/id.txt 17 bytes 4 Aug 2000
GPS-360/Old/XP/ 7.1 KB 30 Apr 2002
GPS-360/Old/XP/riverLanguageMap.xml 5.2 KB 30 Apr 2002
GPS-360/Old/XP/ser2pl.inf 1.9 KB 9 Apr 2002
GPS-360/Old/XP/ser2pl.sys 39.6 KB 9 Apr 2002
GPS-360/QRemover.exe 154.3 KB 5 Sep 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 Pharos 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 Pharos 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 Pharos. All company names/logos are properties of their owners.
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