I'm unable to locate support for the MP4 Digital Signage Player (the one based on the T610). Product number is D3K57UT.
I can find support for later models, like the 4200 and 8000 series, but nothing for this earlier (2014) model. A few months ago, this was available. I've tried searching every way I know, and have come up with nothing but product info, no driver/OS support.