USB-C MacBook Pro and serial-to-USB drivers

Hi,

I use a Keyspan USA-19HS serial-to-USB device and it does work fine with macOS Mojave 10.14.2 after migration from macOS 10.11 on my old MacBook Pro.

I have just bought a new MacBook Pro "all USB-C, 2018" and I connected my serial device to the MBP through the serial-to-USB device itself connected to the ne MBP via the USB-to-USB-C Apple adaptor.

Although I managed to install the latest driver (version 4.0) via keyspanUSAdrvr 4.0b4.pkg, the Keyspan USA-19HS serial-to-USB device is not recognized (it doe not appear among the connected devices) and no serial port appear in the communication settings of my apps using a serial port.

I am afraid there is a real trouble due to the USB-to-USB-C(archer than to Mojave 10.14.2).

Please help !

Thanks.