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Many laptops can't handle more than USB 2.0 when outputting display over the same port. Those that can need a certain protocol (too lazy to look up). There's a
by thedougd 5y ago
Many laptops can't handle more than USB 2.0 when outputting display over the same port. Those that can need a certain protocol (too lazy to look up). There's a better protocol that allows both, but now you're in the $100+ range of hub/docks that can handle it.
- physhster 5y agoThat would be Thunderbolt 3 or 4, I guess?
- avidiax 5y agoYou are thinking about USB-C Alt Mode, which is a way for displayport to go over USB-C. To get 4k60 + USB3.1, you either need USB-C Alt Mode with DP1.4+ (supported by almost zero monitors), or Thunderbolt-3 (supported by fantastically expensive monitors). It's much more economical to live with USB2.0 for your keyboards and mice, and get a separate USB3.1 hub if you need that. https://www.bigmessowires.com/2019/05/19/explaining-4k-60hz-video-through-usb-c-hub/ https://www.bigmessowires.com/2019/05/19/explaining-4k-60hz-...
- testingtestin 5y agoApple multiport dock supports 4k/60 hdmi and usb 3.0 somehow, but only on 2019 and newer macbook and ipad models.
- thedougd 5y agoThank you. I was originally hoping to have gigabit Ethernet on the same monitor hub, but settled on the 300mbps actual throughout USB 2.0 allowed. At least it provides reliable low latency.
- BlueTemplar 5y agoI'd guess that this might be related to USB A (2.0) being only rated for 2.5 W (up to 7.5 W for the "Battery Charging" specification), while USB C needs to support at least 15 W (up to 240 W) ?