This is essential. The KD-C100 uses a standard "2-pin" Kenwood-style connector (similar to Baofeng UV-5R).
Assuming you have downloaded (the safest free option), here is how to program your first channel.
: The mini-USB port on the side of the radio is for charging only and cannot be used for programming.
Follow these sequential steps to safely read from and write to your handheld radio. Step 1: Install the Cable Drivers
Ensure the radio is turned completely on. Push the 2-pin connector extremely hard into the side of the radio; the plastic casing on budget radios can sometimes block the pins from making full contact.
Windows will automatically fetch the correct driver. You will see "USB Serial Port (COMx)". Note down the COM port number.