3 ms·

I have one of those Anker x-in-one hubs and it works well, minus the Ethernet which it capped at 300Mbps due to [checks notes] a USB 2.0 interconnection. Why?!

I have one of those Anker x-in-one hubs and it works well, minus the Ethernet which it capped at 300Mbps due to [checks notes] a USB 2.0 interconnection. Why?!? I ended up getting a separate sub $20 USB-C to Ethernet adapter from a random Amazon brand called Uni. Get full gig, every time despite it having a Realtek 8153 chip in it. So, there might be more to it.

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 ago
  That would be Thunderbolt 3 or 4, I guess?
- avidiax 5y ago
  You 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 ago
    Apple multiport dock supports 4k/60 hdmi and usb 3.0 somehow, but only on 2019 and newer macbook and ipad models.
  - thedougd 5y ago
    Thank 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 ago
  I'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) ?
mst 5y ago
There's a comment only visible via showdead from somebody who claims to be working in China and that the 8153 is actually fine except most of their employers' competitors mess up powering it properly, and it's a cheap enough chip to not be particularly happy when that happens. I have no means of verifying this, but it seems at least a plausible hypothesis.
- physhster 5y ago
  I'm totally buying this. It's 2022, I am pretty sure Realtek knows how to make a reliable gigabitEthernet chip, and at the same time it's also possible that OEMs cut corners in power design.

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 ago
That would be Thunderbolt 3 or 4, I guess?
avidiax 5y ago
You 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 ago
  Apple multiport dock supports 4k/60 hdmi and usb 3.0 somehow, but only on 2019 and newer macbook and ipad models.
- thedougd 5y ago
  Thank 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 ago
I'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) ?

mst 5y ago

There's a comment only visible via showdead from somebody who claims to be working in China and that the 8153 is actually fine except most of their employers' competitors mess up powering it properly, and it's a cheap enough chip to not be particularly happy when that happens. I have no means of verifying this, but it seems at least a plausible hypothesis.

physhster 5y ago
I'm totally buying this. It's 2022, I am pretty sure Realtek knows how to make a reliable gigabitEthernet chip, and at the same time it's also possible that OEMs cut corners in power design.