I am just going with what is layed out on the typical application from the datasheet and Adafruit’s board
1 Like
But it depends on what you need. Here, you only need the HUSB238 to request USB-PD 5v 3A. So that the upstream chip doesn’t trip any overload protection before 3A.
After I would get a Framework laptop (I would like to order a 16 after it comes out), I would order a double USB-C expansion card. Keep up the good work, @tbe !
5 Likes
Just here to show my support 
6 Likes
First, shout out to you @tbe, the work you’ve done here is really impressive, thank you for your involvment in the community and for sharing your journey with us.
I’m still thinking about acquiring a Framework, reading all of these posts makes my mouth water.
I would for sure acquire one of these adapters but would love to see PD passthrough come in at least one of the port so I can reduce the number of extension cards I need for basic usability of the laptop.
I found this boy popping on the Amazon listing Connect USB-C to 4-Port USB-C Hub | Belkin US, I’m pretty sure
It may be interesting to see what’s inside to see if two ports could fit in the pcb. It would allow a port with passthrough PD and maybe another one that can draw current from the first input if plugged if I understood well.
I’m willing to buy one ship one to you @tbe if you have some time to take it apart and see what could be done.
2 Likes
Welcome to the community 
…
Thanks but that’s not necessary. I did take a look at a different one (delock branded) that has the ICs they used published on their website. The problem is (with many specialized ICs) that there’s no datasheet, devkits or other documentation publicly available (you have to be company signing an NDA to get these things). The FW does have a similar chip on the mainboard. Also there is the PCB real estate problem remaining, the space is already crammed with components and just simply adding more layers won’t help much.
I’ll first get the current design up and running (well it mostly is but there is some work to be done to make it manufacturable), then we’ll see where this gets…
18 Likes
Just commenting to add my support to this project. Really impressive work, eager to see where this is going. If there was a crowdfunding campaign to build this extension as a finished product, I’d surely get a bunch!
5 Likes
I would also would buy 2 pieces (but I live in Europe).
3 Likes
I would buy at least two of these as well.
3 Likes
Definitely down for one, depending on final price, maybe two! Looks really useful! Great work!
2 Likes
Just noting my show of support for multi output adapters like two USB-C ports.
I have the AMD Framework 13 on order and having space for more than four ports at any given time (even if there are some limitations on capability of those ports) would be awesome.
2 Likes
Would definitely be ordering one or two as soon as available.
1 Like
Just came to say that I’d happily buy 2 over here in Australia regardless of price.
This is definitely something framework should have done from the beginning.
1 Like
Add me to the list of interested parties (UK), I would probably buy 2-3.
Just to throw my support behind this too, I would also buy one or two!
1 Like
I would be down for one, UK but can also get shipped to US if UK shipping isn’t possible.
+2 from me too, these would be killer for helping turn everything into USB-C
2 Likes
I wonder if Framework can work out a deal to mass produce this, it would be really cool to see official dual USB-C expansion cards.
9 Likes
@nrp is on record saying they don’t plan to, unfortunately: Thanks for this super detailed and correct response! We are holding our hope tha... | Hacker News. Of course, that was some months ago and with regards to making their own card rather than producing somebody else’s, so we can always hope… 
8 Likes