The following hardware makes use of the Intel Whiskey Lake UART drivers. These are mainly used by the Asus range of products and even though different you will note that the hardware inside these computers are the same. These are the latest drivers for the UART which is used and was released in May 2019 for the Windows 10 64bit system.
Intel UART Whiskey Lake Drivers
ASUS VivoBook 15 X512FA UART Driver Win10 64-bit