Smallest Thunderbolt 4 dock? (Portable, low power possible?)

Hardware Hub
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What’s the smallest Thunderbolt dock? More than one downstream Thunderbolt port would be nice, and probably HDMI.

Edit: I have definitely read https://www.reddit.com/r/UsbCHardware/comments/10rhlyo/thunderbolt_docks_with_usbc_pd_input/ before and this is kinda what I’m looking for.

Bonus points if it can be powered off 12V, but I’ll take 20V in a pinch.

I guess USB4 would work as well, but it’s impossible to search for compliant hardware.

Thunderbolt 4 | USB4 | Element Hub | CalDigit – CalDigit looks great, very high power needs though (thanks @teltersat)

https://www.aliexpress.com/item/1005007094869016.html I hadn’t seen before. I do wonder what happens if I give it only 100W in. You’d hope the controllers in these things are smart enough to negotiate lower power for whatever you plug in, but I’m not going to be the first one to test it.

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The Element Hub from CalDigit is pretty compact, but you will need USB4-to-HDMI adapters sadly.

Edit: Things to have in mind - 19V at 7.89A, 3 downstream TB4 ports, but only 60W charging for a computer.

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That’s quite a large power requirement. I wonder what it uses on average?

I should have specified: I’d like to have a “portable” dock so my plan was to either find one that uses USB-PD in (I can survive with 35W power to my host devices) or use a 12V or 20V USB C to barrel jack converter.

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It’s not only the voltage, but also the Amp consumption, and making sure it matches whatever USB-PD your computer can output. Pluggable, StarTech and OWC may have something at 20V x 5.5V, but can your laptop deliver that much power?

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Laptop no, GAN charger yes, but if we found a dock that was limited to 30 or 60W then you could go even smaller.

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