What you mention here is possible. You’ll be able to use the graphics port on both of them, as well as the USB ports. You’ll have two Ethernet interfaces added to your computer and you can choose to use either of them, and both USB audio devices will show up in your sound settings, but you’ll only be able to use one of them at a time. Power should not be an issue because both docking stations have to be plugged in with AC adapters and will draw their power from your home or office AC outlet. I hope this answers your question.
I’m glad I could help. I’m going to close this thread. If you have any other questions, please feel free to contact us directly at support@plugable.com or open another thread. Thanks!