The "fju" prefix typically points to a controller chip manufactured by or a similar Taiwanese semiconductor firm. The 02s variant usually refers to a specific firmware revision for connecting older PATA/IDE hard drives or DVD drives to a modern computer via USB.
Select , click Browse , point it to your extracted folder, and click Next .
If your software cannot communicate with the FJU02S even though the driver is installed, the assigned COM port number may be too high or already occupied. fju02s driver link
Another driver is conflicting, or the device is disabled in BIOS. Fix:
Right-click the device name and select Update driver -> Browse my computer for drivers . The "fju" prefix typically points to a controller
What is the exact shown in your Device Manager?
Even with the correct fju02s driver link, you may encounter problems. Here is a diagnostic table: If your software cannot communicate with the FJU02S
For Realtek 88x2au/88x2bu chipsets: