USB C hub with power and additional C ports
https://dancharblog.wordpress.com/2020/12/08/10-usb-c-hubs-with-2-or-more-usb-c-downstream-ports/
A community for PC Master Race.
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USB C hub with power and additional C ports
https://dancharblog.wordpress.com/2020/12/08/10-usb-c-hubs-with-2-or-more-usb-c-downstream-ports/
I don't think there is any capture card in the market that supports recording with variable refresh rate. Only some can do passthrough. I guess you mean high refresh rate (i.e. >60Hz), don't you?
Btw the type C combo port is outputting DisplayPort 1.4. DisplayPort capturing devices are real rare and expensive. The options you list are all HDMI capturing devices. So, apart from the capturing devices themselves, you also need to pay attention to whether the DisplayPort-to-HDMI dock or adapter supports high refresh rate.