Wouxun KG-S88G
There will not be an RT Systems programmer for this radio. Seems the manufacturer wanted to protect this model with a strange encryption on the data. While someone else may be able to decipher the pattern, RT Systems will leave you to program the radio from the face or to use the manufacturer's software.
On a better note, the RT Systems USB-K4Y cable works with the radio using the manufacturer's software and is Windows 11 compatible.