Live data from Hacker News

Show HN: I built a website to better compare USB-C hubs found on Amazon

usb-hubs.org

71–80 of 280 posts

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#71
Tangentially related, does anyone know if there is a DisplayPort-to-USB-C/Thunderbolt cable one could use to connect a GPU (DisplayPort) to a monitor (USB-C/Thunderbolt)?

I'd like to connnect Titan RTX (DisplayPort) to LG's 31" 5k2k (USB-C) but all I see are cables for the opposite direction, i.e. USB-C/Thunderbolt to DisplayPort, for MacBooks. Other DisplayPort on LG is already used by another computer (gaming PC with 2080Ti) and HDMI can't do 5120x2160@60Hz.

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#72
post #60
post #38

Earlier quoted context omitted.

Definitely! It is on my todo list to include https://reviewmeta.com/ information for every product :)

Just out of curiosity, do you have any statistics on how many people disable the affiliate links? That's really clever by the way, placing that button so prominently. It both instills trust and serves as a gentle reminder of the amount of work that went into this (at least in my mind).

I do not track that information, yet. But it is a cool idea and I think would make for some interesting insights: Will implement!

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#74

Nice work. I miss the ability to filter by video support. I got this one [1] without reading the fine print, and it only supports 4K at 30Hz, not 60Hz. I'm actually still looking for a hub that will do 4K/60Hz HDMI/DP and power delivery (and preferably 1-2 extra USB-C ports), so that I can power my MacBook Pro with it, and have it deliver video to my external display, all while only having one cable going into the Ma…

Will definitely add filter by video support!

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#75
post #73

From what I can see, none of these support multiple 4K monitors - how do people dock in situations like this? I’ve been using a USB-C eGPU with my multiple screens and Ethernet attached to that. Is there a cheaper way to do this?

Is it possible to buy two adapters and plug one monitor into each? Tedious, yes, but cheaper than eGPUs.

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#76
post #71

Tangentially related, does anyone know if there is a DisplayPort-to-USB-C/Thunderbolt cable one could use to connect a GPU (DisplayPort) to a monitor (USB-C/Thunderbolt)? I'd like to connnect Titan RTX (DisplayPort) to LG's 31" 5k2k (USB-C) but all I see are cables for the opposite direction, i.e. USB-C/Thunderbolt to DisplayPort, for MacBooks. Other DisplayPort on LG is already used by another computer (gaming PC wi…

The Delock 63928 https://www.delock.de/produkte/G_63928/merkmale.html?setLang... is in the direction you want but I am not 100% it can do DisplayPort 1.4. AmazonGlobal ships it globally from https://www.amazon.co.uk/DeLOCK-Displayport-Adaptor-type-Mon... please test and report back either at https://www.reddit.com/r/UsbCHardware/comments/co23kd/i_have... and mention /u/chx_ so I see your report or just email me at chx1975 gmail . While reddit has unsavory parts, we keep our little corner focused on USB C knowledge.

Alternatively, you can power the Gigabyte GC Titan Ridge from a mining riser, no PCIe is necessary, feed it DisplayPort signals, get Thunderbolt signals. Titan Ridge is DP 1.4 capable.

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#77

Nice work. I miss the ability to filter by video support. I got this one [1] without reading the fine print, and it only supports 4K at 30Hz, not 60Hz. I'm actually still looking for a hub that will do 4K/60Hz HDMI/DP and power delivery (and preferably 1-2 extra USB-C ports), so that I can power my MacBook Pro with it, and have it deliver video to my external display, all while only having one cable going into the Ma…

I was shopping for that the other day but didn't pull the trigger; here are some things I found. Thunderbolt docks have come down from ~$300 to ~$100 so you may be better off with that route.

https://www.bigmessowires.com/2019/05/19/explaining-4k-60hz-...

https://smile.amazon.com/Cable-Matters-Multiport-DisplayPort...

https://smile.amazon.com/Dell-Business-Thunderbolt-USB-C-Doc...

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#78
Unfortunately this doesn't fix any of the confusing bullshit around USB versions and specs and port shapes. And it muddies the issue by mixing "3" and "2" with "C", which describe entirely different things. My first search looking for 3 USB-C ports brought up this behemoth: https://www.amazon.com/Ethernet-Adapter-VEOOVE-Samsung-Unive...

2 of the USB-C ports are USB 2.0? WTF is that. Nobody wants that.

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#79

Nice work. I miss the ability to filter by video support. I got this one [1] without reading the fine print, and it only supports 4K at 30Hz, not 60Hz. I'm actually still looking for a hub that will do 4K/60Hz HDMI/DP and power delivery (and preferably 1-2 extra USB-C ports), so that I can power my MacBook Pro with it, and have it deliver video to my external display, all while only having one cable going into the Ma…

To work around macOS' awful monitor restrictions (i.e. lack of general MST support), we bit the bullet and got a Dell WB19TB [1] (Thunderbolt dock). It sucks from a wiring perspective but it works. [1] https://www.dell.com/en-us/work/shop/dell-thunderbolt-dock-w... (To those that go down this route, be aware: you cannot use both DP ports on this dock as-is -- again, macOS lacks MST support. One monitor must be connec…

> $259.99

It sucks from a price perspective too.

Re: Show HN: I built a website to better compare USB-C hubs found on Amazon

#80
post #71

Tangentially related, does anyone know if there is a DisplayPort-to-USB-C/Thunderbolt cable one could use to connect a GPU (DisplayPort) to a monitor (USB-C/Thunderbolt)? I'd like to connnect Titan RTX (DisplayPort) to LG's 31" 5k2k (USB-C) but all I see are cables for the opposite direction, i.e. USB-C/Thunderbolt to DisplayPort, for MacBooks. Other DisplayPort on LG is already used by another computer (gaming PC wi…

> Tangentially related, does anyone know if there is a DisplayPort-to-USB-C/Thunderbolt cable one could use to connect a GPU (DisplayPort) to a monitor (USB-C/Thunderbolt)?

Edit: See other comment. Looks like someone actually did manage to create a cheap adapter, and was able to power it from DisplayPort as well. I'd love to hear if anyone knows how well this works.

I think this would be quite hard to do inexpensively, as USB-C hosts have to be configured by the client to send Display Port signals on the SuperSpeed lanes. [1] If the monitor (client) doesn't detect a host, it's probably not going to try to interpret the SuperSpeed signals as DP. It seems to me that an adapter would likely have to emulate a USB-C host supporting DP alt mode. This would at least require external power (unless your monitor's USB-C port is powered), and would more likely require the adapter to use one of your USB 3 ports so that it can also support devices on any monitor USB hubs.

[1] https://www.totalphase.com/blog/2019/11/how-displayport-alt-...

Post reply on HN