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Explaining 4K 60Hz Video Through USB-C Hub

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Re: Explaining 4K 60Hz Video Through USB-C Hub

#11

Post by hobofromabroad »

craftinator wrote: post #4

I'm actually a bit confused by why it matters at this point. HDMI is ubiquitous, can handle a high enough resolution/ rate that most human eyes can't distinguish better, and is relatively cheap. It's an optimized, widely available format, and does a great job. USB is a downgrade for this particular task. Other than novelty, I don't see a reason to ever do this.

For instance: a lot of us want one cable to connect display, keyboard, mouse, power to the laptop (aka some device)?

Re: Explaining 4K 60Hz Video Through USB-C Hub

#12

Post by greggman2 »

dlevine wrote: post #2

Interesting! Was wondering about this recently when shopping for a USB-C hub, and couldn't find many that supported 4K@60hz. Ended up getting one that does 30hz because my Display at home is only 1440p. I have used Displaylink adapters before (have one floating around somewhere), and was not super impressed (my machine was a bit flaky when using it), although I did have 2 external displays going on my Macbook at one…

I went through 3 of them before finding one that worked (the first was buying before I knew the issue existed. The second was being impatient). I'm using this one on a Macbook Air. (https://www.hypershop.com/products/hyperdrive-duo-hub-for-us...). I'd prefer one that used a single USB-C connection (assuming that's possible) and that used a cable so it was useful for more than just the couple of devices that have 2 USB-C ports exactly that far apart but at the time, a year ago, that was one of the few choices. The good thing is it does work and I have it on 4k@60hz

Re: Explaining 4K 60Hz Video Through USB-C Hub

#14

Post by bgorman »

Great article. I was recently wading through this problem for my work setup. I was going crazy wondering what the actual technical limitations were with USB-C vs Displayport over USB-C versus Thunderbolt. I ended getting this WAVLINK dock for $150 with Thunderbolt 3. If you want Dual 4k montiors and USB 3 output + power for your laptop I recommend this.

https://www.amazon.com/WAVLINK-DisplayPort-Thunderbolt-Charg...

Re: Explaining 4K 60Hz Video Through USB-C Hub

#16

Post by Eric_WVGG »

I saw this headline and was briefly excited for a moment that a USB-C hub finally existed. That is, a device like an ethernet hub or a USB hub, that would turn one port into several other ports of the same kind.

This is an article about USB-C port replicators. Four years into this and not a real single USB-C hub exists. I’ve never seen such a botched rollout.

Re: Explaining 4K 60Hz Video Through USB-C Hub

#17

Post by nikanj »

Eric_WVGG wrote: post #16

I saw this headline and was briefly excited for a moment that a USB-C hub finally existed. That is, a device like an ethernet hub or a USB hub, that would turn one port into several other ports of the same kind. This is an article about USB-C port replicators. Four years into this and not a real single USB-C hub exists. I’ve never seen such a botched rollout.

I've been told the USB-C spec doesn't allow for hubs like that.

Re: Explaining 4K 60Hz Video Through USB-C Hub

#18

Post by garmaine »

Eric_WVGG wrote: post #16

I saw this headline and was briefly excited for a moment that a USB-C hub finally existed. That is, a device like an ethernet hub or a USB hub, that would turn one port into several other ports of the same kind. This is an article about USB-C port replicators. Four years into this and not a real single USB-C hub exists. I’ve never seen such a botched rollout.

USB-C hubs are not permitted by the spec.

Re: Explaining 4K 60Hz Video Through USB-C Hub

#19

Post by garmaine »

craftinator wrote: post #4

I'm actually a bit confused by why it matters at this point. HDMI is ubiquitous, can handle a high enough resolution/ rate that most human eyes can't distinguish better, and is relatively cheap. It's an optimized, widely available format, and does a great job. USB is a downgrade for this particular task. Other than novelty, I don't see a reason to ever do this.

You are getting down-voted because you didn't read the article.
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