To solve this intellectual infringement – original Prolific company modified their newest drivers to render the counterfeit adapters unusable. The “Driver Version” must say “2. Enter your Email Address here to receive a link to change password. Removal of this tool: With these, a much higher baud rate can be achieved compared to the legacy UART controller. The actual product may vary with the picture shown.

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PL2303 USB to Serial (TTL) Module&Adapter

If it offers a choice to remove the driver, then select to remove the current “bad” driver. On-chip crystal oscillator running at 12MHz. Supports RS Serial interface. And if you double-click pl2303 usb to serial it, you will see: You must follow ever step in the process in exact order.

The “Driver Version” must say “3. Run the installer program. Images shown is only for representation. Only bit driver I have ever found that works with all the “Prolific” adapters is Version 3.

The actual product may vary with the picture shown.

Unfortunately this decision also renders all earlier adapters inoperative. Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality and causes Windows driver compatibility pl2303 usb to serial Yellow Mark Error Code 10 in Device Manager. Supports Remote wake-up and power management. Website Design by Alvitr. That pl2303 usb to serial correct driver version is not installed.


We issue this warning to all our customers and consumers to avoid confusion and false purchase.

USB-to-Serial Cable / Converter (PL2303HX)

Issue will also may show messages like this: Then run the installer again to install the correct driver.

Add to Wish List Compare this Product. Enter the code in the box below. To pl2303 usb to serial this ti infringement – original Prolific pl2303 usb to serial modified their newest drivers to render the counterfeit adapters unusable. Please be warned that selling counterfeit products are illegal and punishable by civil and criminal courts according to the trademark, copyright, and intellectual properties laws and regulations.

This article was not helpful. By integrating all the function in a SSOP package, this chip is suitable for cable embedding. Making a Controller based project USB compatible. Or contact our worldwide distributors for seral cable product reference and chip samples.

USB-to-Serial Cable / Converter (PLHX)

Available forum solutions to this problem are half-baked. This device is also compliant with USB power management and remote wakeup scheme.


Prolific advices end-users to only purchase vendor branded cable products with company name contact information for service and support.

What worsens this issue is that there are many usg Driver Removal Tools” that do pl2303 usb to serial work properly. If not, then the correct driver is not installed.

Or you may get no error at all, but your device will still not work. Main cause of this issue is because the device you own contains a counterfeit “Prolific” chip China clone. Prolific will take proper and severe actions to cease and confiscate these counterfeit pl2303 usb to serial.