Released around 2012–2014, version 3.3.2.105 was significant because it worked reliably on systems, bridging the gap between older hardware and newer OS versions. It was one of the last drivers before Prolific began actively blocking counterfeit chips (many low-cost adapters used cloned PL-2303 HX/HXA/EA chips) in later driver releases.
: Run the installer for the 3.3.2.105 executable. Manual Selection : Open Device Manager .
: Using tools like Qualtrics or Gorilla to host complex experiments.
is its ability to bypass "Code 10" errors and hardware blocks on older or counterfeit Handson Technology
The predates these modern driver blocks. Because it lacks the validation mechanisms found in newer versions, it functions correctly with both older, authentic legacy hardware and inexpensive clone hardware. Driver Version Release Date Windows 10/11 Behavior on Legacy Chips 3.3.2.105 October 27, 2008 Works perfectly (Skips chip validation check) 3.3.2.102 Early 2008 Works for reading, but sometimes fails on writes 3.9.x.x+ Recent Years Fails (Triggers Code 10 / "Phased Out" errors) Step-by-Step Installation Guide prolific 3.3.2.105
As a countermeasure, Prolific updated its official drivers starting around 2010. These newer driver versions included a . When a driver identified a chip as a non-genuine or older, unsupported clone, it would intentionally refuse to work , displaying a Code 10 error (“This device cannot start”) and effectively bricking the device.
Because driver version 3.3.2.105 predates these chip-checking restrictions and digital signatures, it lacks the mechanisms that intentionally reject legacy or clone hardware. Installing it allows the operating system to process input/output data seamlessly through the USB-to-Serial Bridge without throwing errors. Step-by-Step Installation Guide
“PL2303HXA PHASED OUT SINCE 2012. PLEASE CONTACT YOUR SUPPLIER.”
This is where driver version enters the scene. This driver was released on October 27, 2008. Crucially, it was developed before Prolific implemented their aggressive clone-blocking mechanisms. This driver does not care about authenticity—it only cares about communication. Because the clones mimic the hardware signatures and command set of the real PL2303 well enough, this vintage driver treats them as legitimate hardware. Released around 2012–2014, version 3
Run the installer for version 3.3.2.105. It is often necessary to disconnect your internet during this step to prevent Windows Update from automatically overwriting it with a newer, non-working version. Force Select the Driver Plug in the adapter and return to Device Manager Right-click the device > Update driver Browse my computer for drivers Let me pick from a list of available drivers on my computer Select the Prolific version 3.3.2.105 [10/27/2008] from the list and click Verify Connection
: Prolific 3.3.2.105 includes advanced automation features that enable users to automate repetitive tasks, thereby saving time and reducing the likelihood of human error.
chip, made by Prolific Technology, was the industry standard for converting USB signals to Serial (RS-232). The Counterfeits
Prolific 3.3.2.105: The Definitive Guide to Legacy USB-to-Serial Drivers Manual Selection : Open Device Manager
Here is the best way to approach this:
Installing this specific driver is often not as simple as running a setup file. The key is to use the through Device Manager . This ensures you load the exact 2008 driver, bypassing any newer drivers that Windows might try to force.
It was released before Prolific implemented strict hardware validation checks that disable non-original chips.
is the most reliable software solution for bypassing the dreaded "This Device Cannot Start (Code 10)" error on older or counterfeit Prolific PL2303 USB-to-Serial adapter chips . Released on October 27, 2008 , this specific legacy driver version predates the anti-counterfeit checks implemented by Prolific in newer software versions. It remains highly sought after by network engineers, radio operators, and hardware enthusiasts trying to keep vintage or budget hardware working on Windows 10 and Windows 11. Why Do You Need Prolific Driver 3.3.2.105?