Connect the serial device to your serial-to-USB cable and test the device in Windows 11.įor more details about manually installing drivers in Windows 11, check this article. Once the installation is complete, you should see the Prolific device in the Device Manager under Ports without any error. If the User Account Control window shows, click the Yes button to confirm running the installer. If the chipset your cable is using is not included in the Windows 11 version, you can try downloading and installing the previous version for Windows 10.Īfter downloading the ZIP file ( PL23XX_Prolific_DriverInstaller_v402.zip at the time of writing), extract the ZIP file contents, and run the setup program in the subfolder ( PL23XX-M_LogoDriver_Setup_402_20220309.exe at the time of writing). Make sure to pick the latest version and take note of the chipsets it supports. To get the latest PL2303 driver, download it from the Prolific website. Download and install the Prolific PL2303 driver in Windows 11 In the program interface, select the COM port in the drop-down field and then click the Check button to get the details of the PL2303 chip connected to the port. There is no need to install anything, simply run the chip check program. Since it is not always possible to see the chip and read the type number, you can use the Prolific utility to determine the version.Īfter downloading the ZIP file, open it and run the EXE file inside it (e.g. So it is important to know which variation of the PL2303 chip is in use on your system. With chip manufacturers, it is sometimes type indicators.įor Windows, Prolific also specifies which types are no longer supported on Windows 11. In most cases, updates to hardware are indicated with revision numbers. Like with many hardware vendors, not all variations of their products are supported on all platforms. The result in both cases is that Windows 11 cannot communicate with the device that is connected through the USB to serial cable and any programs trying to use it will not find the device. The error code for the device will be “ The device cannot start (Code 10)”. If the driver for the Prolific PL 2303 device is not installed in Windows 11, you can either get an error message like “ Please install corresponding PL2303 driver to support Windows 11 and further OS”, or the device will show with an error in the Device Manager (typically with a yellow exclamation mark). What if Windows does not have a Prolific PL2303 driver? Another popular solution for USB to RS232 is the TrippLite USA19HS or Keyspan USA-19hs. For Windows drivers, check their support site. Their chips in the CP210x series also offer USB to UART solutions (the CP2102 is often used). Since the cables are available for USB Type-A ports as well as USB Type-C ports, a solution is available for most Windows 11-based systems.Īn alternative solution is available from Silicon Labs. If your PC does not have a serial port, many of these devices can still work with a Windows 11-based computer using a USB-to-serial cable. Audio equipment (radios, amplifiers, mixers).Some examples of the types of products that use a serial connection are:
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