Prolific PL-2303 Driver Download

Prolific Drivers

The PL-2303 is a other manufactured by Prolific. This driver - "" - has been downloaded 643 times and is rated 3 out of 5 stars based on 6 reviews. It is compatible with PCs running Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 1.6 MB.

6 Ratings

Supported Models




Supported Operating Systems

Windows Vista, Windows 2003, Windows XP, Windows 2000, Windows ME, Windows 98SE, Windows 98, Mac OSX, Linux

File Name

Versions (4-Nov-2005)

Additional Notes

I had a USB > RS232 adapter which used the Prolific chipset. Prolific themselves say that they have no plans to release a driver for Vista. I found this on - who said it was compatible with Vista. It was!!

Uploaded By

Phil Hartles (DG Member) on 2-May-2007

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Linux/Makefile 942 bytes 13 Feb 2002
Linux/ld_pl2303_v0728.rar 19.8 KB 12 Apr 2005
Linux/pl2303.c 20.6 KB 13 Feb 2002
Linux/pl2303.h 3.6 KB 13 Feb 2002
Linux/readme.txt 282 bytes 15 Mar 2002
Linux/usb-serial.h 8.3 KB 13 Feb 2002
Linux/usbserial.c 46.9 KB 13 Feb 2002
Mac OS 8.6-9.x/md_pl2303_v135b2.hqx 13.3 KB 12 Apr 2005
Mac OS 8.6-9.x/pl2303.sit 7.6 KB 12 Aug 2004
Mac OS X/PL2303_1.0.9b3.pkg.hqx 33.2 KB 22 Mar 2005
Mac OS X/readme.txt 817 bytes 23 Mar 2005
WinCE_3.0/PL-2303 for WindowsCE3.0(for ARM CPU)/ce_pl2303_060702.CAB 22.1 KB 10 Jun 2002
WinCE_3.0/PL-2303 for WindowsCE3.0(for ARM CPU)/ce_pl2303_060702.CAB/00USBSER.001 21.5 KB 6 Jun 2002
WinCE_3.0/PL-2303 for WindowsCE3.0(for ARM CPU)/ce_pl2303_060702.CAB/USBSER~1.000 505 bytes 6 Jun 2002
WinCE_3.0/PL-2303 V1.0.0.1 for WindowsCE3.0(for X86 platform)/00USBSER.001 28.2 KB 26 Oct 2004
WinCE_3.0/PL-2303 V1.0.0.1 for WindowsCE3.0(for X86 platform)/USBSER~3.000 484 bytes 12 Nov 2004
Windows/PL-2303 Driver Installer.exe 1.7 MB 10 Jan 2005

How to Update PL-2303 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the PL-2303 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 PL-2303 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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