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Cundy66's avatar
Cundy66
Copper Contributor
Nov 15, 2021
Solved

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 and when I connect to the USB, it fails to c...
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  • ejohanson's avatar
    ejohanson
    Nov 16, 2021

    I tried the older driver available here:
    http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=223&pcid=126
    And 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.

jasoncal84's avatar
jasoncal84
Copper Contributor
May 23, 2025

Hi all,

I have the same issue with a knock off Prolific chip serial-to-USB cable. I plugged in my real Prolific chip cable and it detected and installed right away without the "Please install corresponding PL2303 driver to support Windows 11 and further OS" message. This cable did not work for me on my Windows 10 machine either. 

You may be eager to get into a certain device with this but you will need to buy a real Prolific cable. This is the cable I bought 5 years ago and still works: 

https://www.amazon.com/Sabrent-Converter-Prolific-Chipset-CB-DB9P/dp/B00IDSM6BW

 

Just buy it will work when you get it as it does for me and the Cisco device I had to get into. Here's what Hardware ID looks like, very close to the knock off: 

Hope that helps,

 

Jason

 

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