Millennium Chess Board and ChessLink
With HIARCS Chess Explorer v1.9.4 you can use connect to the Millennium Chess Board using the Chess Link.
On PC Windows you will need a driver for the USB Serial connection to the Chess Link module. On many PC Windows computers this driver will already be installed. If the driver is not already installed you can you will need to install a FTDI driver.
The driver page of the Millennium Chess Link chipset manufacturer FTDI can be found here: https://www.ftdichip.com/Drivers/VCP.htm
You can download the Windows installer for the ChessLink USB Serial Link FTDI Driver here
You can download Windows driver for the Millennium eOne here: Download eOne CH341 driver
Alternatively look in the Documents/HIARCS Chess/Drivers folder.