Gigabyte, ASUS, MSI, ASRock, and others often customize Realtek drivers for their specific LAN ports (especially with additional features like CFOS Speed or Turbo LAN ).
If the .exe file doesn't run, extract the contents using 7-Zip, then use the Device Manager > Update Driver > Browse my computer method to point to the extracted driver files. Run Rtk-nic-driver-installer.sfx.exe Download High Quality
If you know the brand of your USB adapter or dock (e.g. Digitus, Exsys, Century), go to that company’s support section and search for your exact model. Many of them offer the same RTK_NIC_DRIVER_INSTALLER.sfx.exe file as a manual download. Gigabyte, ASUS, MSI, ASRock, and others often customize