There's only one port your display needs, and it's not HDMI

USB-C cables implement different standards and have varying capabilities.
游侠网 on MSN

曝Steam主机可输出4K/120Hz画面 但画质会有巨大牺牲!

V社最近公布了Steam Machine主机，2026年初开售，搭载半定制AMD Zen4 6核12线程CPU与RDNA3 GPU，运行SteamOS。目标画质为4K/60帧，配备DP1.4接口支持理论8K 60Hz/4K ...
CNET

HDMI ARC and eARC: Audio Return Channel Made Easy

If you want to connect your new TV to a soundbar or receiver, the easiest way to do it is with an HDMI cable. Nearly all modern TVs and audio gear have an HDMI feature called Audio Return Channel. ARC ...