A:AnswerHi, I used to have a similar setup at work, same dock but with an HP 840 G3. with the monitors you mentioned you could go two ways. regardless I would just dock the laptop since it charges then as well, and then run the monitors to the dock. The dock has no HDMI outs so you could go two ways. Use the adapters to connect to HDMI cables to the monitors it you already happen to have the HDMI cables. If you don't you could just buy cable that have display-port on one end and HDMI on the other, they sell those as well. Either way will get you what you are trying to do.
A:AnswerThere are such things as VGA to HDMI adapters/Wires so its possible you could get the Display-Port to HDMI adapter to connect to your VGA to HDMI wire.
(Monitor)-->(VGA male)<-->(HDMI male)---->(HDMI female) to (Display-Port male)-->(XP Pen Graphics display)
this is with a VGA to HDMI adapter.
or
(Monitor)-->(VGA male wire)--->(VGA female end of adapter) to (DisplayPort male end of adapter) -->(XP Pen)
this is with DisplayPort to VGA.
Basically there are almost always wires or adapters that can have multiple ends and in the middle of the connections you may need that particular proprietary wire,
for example from the HDMI female end you will have to connect a male to male HDMI wire to connect to the other HDMI female end of the other adapter.
Hope this helps.
A:AnswerIt will connect it but it won't run at 144hz afaik. I use the adapter for my 3rd screen on PC since my GPU has 1 HDMI and 3 DP outputs and the screens run 60hz(HDMI to DP adapter but can't select 75hz in settings), 75hz(HDMI), and 144hz(DP). The 2 HDMI monitors are 2 of the same 75hz monitors so I think the adapter has something to do with limiting it to 60hz, but Xbox can't make over 60fps anyway so it's not like you'll notice stuttering or tearing. The adapters a good cheap way to make your setup work without buying a new screen though!
A:AnswerI really doubt your tablet has a DisplayPort connection, so this adapter is probably not what you need. Your tablet most likely has USB-C, which requires a USB-C to HDMI adapter. If you have a 4K TV, make sure you get one that supports 4K.
If you had said what model of tablet you have, I could say for sure what kind of output it has.
I'll try to link to a page that explains the different connectors and what they look like. I'm not sure if links are allowed:
https://blog.tripplite.com/how-to-connect-a-tablet-to-a-dvi-monitor-flat-screen-tv-or-hdmi-projector/