Hdmi expansion power draw on AMD laptop

What is the powerdraw on HDMI expansion card look like? Does it now automatically turn off when not in use? So it will basically draw no power like the USB-C port when not in use?

I am debating on whether to get a HDMI expansion. I don’t mind a dongle, but the expansion card is obviously much nicer, however I dont want to sacrifice any battery life just to avoid a dongle.

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