looks like the rightmost cable is just a proprietary power connector
also HDMI and USB are both fundamentally different and you'll need both for your tablet to work. HDMI for video, USB for tablet functionality. what other kinds of connections do you have available? if you have a DVI, thunderbolt 3, or displayport connection open then those can all be converted to HDMI with a cheap passive adapter
if you only have USB available, one of the USB to HDMI adapters already mentioned will work fine, but there's more hardware in there so it's gonna be more expensive. it'll just have an HDMI connection you can plug the cord into on the end of it