Why do i see many drivers? Below is a list of drivers that may be suitable for your device. With the different devices, they can have the same driver, it's because they all use the same chip manufacturer. How to select driver? Greddy Emanage Blue Software Serial Numbers here.

But there is a solution – you have to install old drivers – version 3.3.2.105. Simply install drivers, then go to Device Manager ->Right click on Prolific-to-Serial Comm Port and select Update Driver Software.

If you are looking for an update, pickup the latest one. If your driver isn't working, use the driver having the same OEM with the your laptop/desktop brand name.