Follow the instructions. Could only get 30Hz 4k. The advertised 60 is a lie or I'm lapsed. I've tried multiple HDMIs just in case. LAN is a separate topic. With this adapter I got a solid 16 Mbit/s. I unplugged the ethernet cable and plugged it directly into the laptop, and boom, 200+ Mbps USB seemed to work fine. Hooray! This is not the adapter you are looking for. Move.
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