Because these devices are often sold through third-party marketplaces (eBay, AliExpress, Amazon), finding an official support website can be difficult. Here is the safest process to obtain the driver:

The portable launcher shows a successful connection, but your terminal emulation software (like PuTTY or TeraTerm) cannot see the COM port.

The driver enables the transfer of data between the USB device and the computer, ensuring that the device can perform its intended functions.

If you have exhausted all options, the hardware may be faulty. Instead of hunting for a rare driver, consider: