I tried the older driver available here:http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=223&pcid=126And this seemed to work for Windows 11. Weird that an old driver works better than the latest one.I have the PL-2303 TA chipset. Answer from ejohanson on techcommunity.microsoft.com
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Plugable
plugable.com โ€บ plugable technologies โ€บ usb serial adapter drivers (prolific)
USB Serial Adapter Drivers (Prolific) ~ Plugable Technologies
October 1, 2020 - Drivers for the Plugable USB serial adapter using an authentic Prolific chipset, model PL2303-DB9.
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Dell
dell.com โ€บ home โ€บ support home โ€บ product support โ€บ driver details
Prolific USB to Serial Controller Driver | Driver Details | Dell US
This package contains the Prolific USB to Serial Controller driver. Prolific USB to Serial Controller driver is the software that helps your operating system to communicate with USB Serial Port devices.
Discussions

PL2303 issues (Prolific USB to Serial Drivers) Win 11
I have come across an issue that I don't if anyone has come across and found a fix? I have a few handheld radios that I need to update the frequencies... More on techcommunity.microsoft.com
๐ŸŒ techcommunity.microsoft.com
70
2
November 15, 2021
Windows 11 & Prolific USB Drivers
So it is supported then.... It just doesn't come with the drivers in the security rollup. More on reddit.com
๐ŸŒ r/Baofeng
29
24
October 13, 2021
windows 8.1 - how to update prolific USB to serial driver? - Stack Overflow
I have a device (R31D) that read RFID card with USB port(convert serial port to USB port). When I connected it to my computer, ( windows 8.1 - drivers update - X64 ) , It does not work . When I che... More on stackoverflow.com
๐ŸŒ stackoverflow.com
I cannot install Prolific usb to serial RS485
The cable have a PL2303 chip the driver considers counterfeit. The chip could be genuine though, just old - an older revision of PL2303 was cloned by a third party and Prolific have began their uphill battle with clones (and, AFAIK, their own older products). An older, circa 2008, driver will help - from my first-hand experience, it works without any problems, but once Windows had a newer driver, it will use the newer driver by default after each reboot (but keep the driver you've selected when the cable is replugged to the same port until rebooted). The problem is quite common, so a search for "pl2303 old driver" will get you there. 3.3.2.105 is a "known good" version of the driver. But if you've just bought the cable and still within the return timeframe, just return it - it's not your fight. More on reddit.com
๐ŸŒ r/PLC
7
0
April 28, 2025
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OEM Drivers
oemdrivers.com โ€บ usb-prolific-usb-to-serial-driver
PROLIFIC USB to Serial Driver (Windows 11/10/8.1/8/7) | Device Drivers
Many of the USB to Serial cables ... chipset, these chipsets do require drivers to be installed for reliability and compatibility. As this device converts a serial connection usually in the form of a RS-232 based com connector to a more modern high speed USB type serial ...
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USB Driver Download
usb-drivers.org โ€บ home โ€บ prolific usb to serial driver
Prolific USB to Serial Driver | USB Driver
October 17, 2023 - This is the Prolific USB to Serial Driver. There are a number of Prolific Serial drivers for the PL2303 and these have been listed below. There is also the usb\vid_067b&pid_2303&rev_0300 error. This is the Prolific usb-to-serial comm port. You can also see how to fix the error 10 issue from Prolific.
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Daktronics
daktronics.com โ€บ en-us โ€บ support โ€บ kb โ€บ DD1742600
Prolific USB-Serial Adapter Driver Installation
The Prolific USB-Serial adapter ... needs to be reinstalled and the customer does not have the disk, the driver can be found by searching the Internet....
Find elsewhere
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Driver Easy
drivereasy.com โ€บ home โ€บ knowledge base โ€บ driver error โ€บ solved: prolific usb to serial driver not working on windows
Solved: Prolific USB to Serial Driver Not Working on Windows - Driver Easy
January 17, 2024 - Driver Easy will then scan your computer and detect any problem drivers. Click Update next to the flagged Prolific USB to Serial driver to automatically download the correct version of that driver, then you can manually install it (you can do this with the FREE version).
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Reddit
reddit.com โ€บ r/baofeng โ€บ windows 11 & prolific usb drivers
r/Baofeng on Reddit: Windows 11 & Prolific USB Drivers
October 13, 2021 -

Recently installed Windows 11 on one of my laptops and my programming cable stopped working after a security update (which was odd because it worked fine with Win11 for a while at first).

Device manager said the Prolific 2303 (2303TA in my case) wasn't supported by Windows 11 at all, but I found a workaround:

  • Download and install the appropriate driver package from https://oemdrivers.com/usb-prolific-usb-to-serial-driver

  • After installing, go to the Device Manager and find the device listed under Ports (COM & LPT).

  • Right click on the Prolific item in the list and click on Properties.

  • Click on Update Driver.

  • Click on Browse my computer for drivers.

  • Click on Let me pick from a list of available drivers.

  • You should see a list with several Prolific driver options. I chose driver version 3.8.25.0 (7/12/2018) and the cable resumed working as expected.

Hopefully the helps someone else in the future!

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Wondershare Recoverit
recoverit.wondershare.com โ€บ usbs-tips โ€บ fix-prolific-usb-not-working.html
Fixed: Prolific USB to Serial Driver Windows 10 Not Working
To fix a malfunctioning Prolific USB to Serial driver on Windows 11 or 10, manually roll back the driver to an older version via Device Manager or install the specific PL2303 installer to bypass the "Code 10" counterfeit chip error.
Published ย  May 29, 2021
Views ย  103K
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Prolific USA
prolificusa.com
Prolific USA | IC Design & Manufacturing
Prolific provides Android USB Host API driver solution (NO root permission needed) for connecting PL2303 USB-to-Serial devices to Android-powered devices with USB Host API mode support.
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Microsoft
catalog.update.microsoft.com โ€บ Search.aspx
Microsoft Update Catalog
We cannot provide a description for this page right now
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Midniteftp
midniteftp.com โ€บ forum โ€บ index.php
Prolific USB to Serial port adapter driver fix
January 16, 2016 - โ–บ Prolific USB to Serial port adapter driver fix ยท User actions ยท
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Varvayanis
varvayanis.com โ€บ miscellaneous โ€บ Software & Drivers โ€บ Prolific PL2303
Prolific PL2303 USB-to-Serial Comm Port drivers
WDF WHQL Driver: v5.1.8.0 (11/22/2024) Windows 7 / 8.1 / 10 Server 2008 / 2008 R2 / 2012 / 2012 R2 / 2016 / 2019 (32 & 64-bit) PL2303HXD / EA / RA / SA:
Call ย  (209) 586-3782
Address ย  185 Fairview Lane, 95370, Sonora
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EmbeTronicX
embetronicx.com โ€บ uncategorized โ€บ fixed-prolific-pl2303ta-usb-to-serial-and-windows-11
[Fixed] Prolific PL2303TA USB to Serial Windows 11 Problem
Right-click the PL2303_Prolific_DriverInstaller_v1.12.0.exe and Run as administrator. Please refer to the below image. ... After the installation, now you can see the COM port number in the device manager. Please refer to the below image. Now you are good to go. You can use the USB-to-Serial converter for your project now.
Published ย  November 23, 2024
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HP
support.hp.com โ€บ us-en โ€บ document โ€บ ish_11236851-11236836-16
Prolific USB-to-Serial comm port driver 2023
Find support and customer service options to help with your HP products including the latest drivers and troubleshooting articles.
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Prolific USA
prolificusa.com โ€บ products โ€บ cables โ€บ usb to serial/uart cables โ€บ te-c0023 usb to rs232 serial (db-9 male)
TE-C0023 USB to RS232 Serial (DB-9 Male) | Prolific USA | IC Design & Manufacturing
December 12, 2024 - SDK Package includes following: ... Library 5. PL2303G Android App Development Reference Documents ยท User can download PL2303G AAB on Google Play APP store. https://play.google.com/store/apps/dev?id=5801101758672272902 ยท ...