Can't say I know much about it myself, but if you search "DGT" in the forums, there are some threads that might be relevant to your inquiry: Search Forums - Chess.com
What DGT chess board can connect to chess.com?

the answer is' Chess.com does support play with a DGT smart board! You will need to enable a setting in Live Chess before you can use it. Next, click on the settings gear icon near the upper right corner of the board: Then, be sure you have selected the 'Board' tab in the next menu, and scroll to the very bottom of the options.'this is it
I tried searching it up on google but it doesn't give me any advice. Does anyone know which DGT board I should buy to play on chess.com using it?