Dual USB-C Expansion Card

Hi, if the price is not too high, I will be interested with 1.

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After having my Framework 13 AMD laptop for 1 week, Iā€™ll definitely put this expansion on the bottom-left slot, which doesnā€™t support DP-Alt.

Until we have news of this expansion, Iā€™ll keep yelling at clouds.

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I just had a look at the schematic. It is a 4 port hub. Is it possible to add a few pads connected to one of the usb ports of the hub so that we could solder a unifying logitech receiver (we remove the plastic shell of the receiver and keep only the pcb and solder the connector of the usb-a receiver to your board, even if we might trim it to reduce the size of the usb-a contacts with a dremel)) ?


Maybe it is possible by increasing the size of the daughter board holding the male usb-c connector, we could put the unifying receiver PCB there ?

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Guess what project got named dropped in New Yearā€™s Eve Mastadon post from official accountā€¦

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Got a link? TIA

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https://mastodon.social/@frameworkcomputer@fosstodon.org/111677141272904682

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Soā€¦ Can I buy 2 yet? :speak_no_evil:

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Definitely down for 1. Read the whole thread. @tbe massive props to you for pulling through, finding the time and energy to overcome the obstacles along the way and making what started out as an idea, a reality! :raised_hands:

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Hello, just wanted to check back in.
I had a little much to do at work and had a few other things going on so I didnā€™t have too much energy recently to continue this project. But Iā€™ll focus on getting the design to a in-theory production-ready state and would like to publish it.
Not sure yet how itā€™ll go from there since making a real product out of it and going through all the certifications required to sell it legally is way out of my financial (and most likely also technical) capabilities.
Iā€™ll keep you updated :blush:.

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Thank you for updating us! Good luck.

It would certainly be great if there was someone who could step forward to help with thisā€¦ I also have no know-how about this.

Thanks for the update!
Im a big fan of this project and the possibility of having a dual usb-C card! Lots of respect and appreciation for your work!
Have you had contact with framework regarding these issues? I havent been active on the forum but believe reading a long time ago that they are open to supporting community initiatives on these fronts.

That would be great! By publishing, do you mean the design will be open-source? At least under a non-commercial license?

I guess that might be a significant hurdle, and I would hate it if such a great project got stuck on thatā€¦ Iā€™m not familiar with the regulations, but would it perhaps be possible to get around the standard requirements by selling the PCBs as a ā€œUSB-C development kitā€, plus a separate enclosure that would happen to convert it into a Framework expansion card? :slight_smile:

By the way, I run a small EU-based e-shop specializing in DIY mechanical keyboard kits, so I would be happy to help offer the cards for sale in the EU.

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I would love to buy from the eu! Do you ship to switzerland?

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Yes, we ship worldwide (with just a few exceptions).

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As much as Iā€™d love to force you to work on this I have to say that you should 100% take all the time you need! Donā€™t hesitate reaching out for help or taking some time off if it gets too stressful. I think I speak for the others as well when I say that we are immensely grateful for your work so far and donā€™t want you to feel pressured! :smiley:

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I very much like this idea of regular USB and PD.

While itā€™d be really cool to have USB-PD working with this, Iā€™d love to have one, maybe 2, of these regardless as long as itā€™s USB 3 or 4 speeds. Mostly just to have a few extra ports.

Without completely reading the entire looong thread, it seems itā€™s not quite done and ready for more than prototype construction? Iā€™d love to buy 1 or 2 when it is ready. Even though I wonā€™t have my FW 16 for another few months at a minimum.

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In case you missed it in the long thread, the current board does not have USB-PD. And adding USB-PD seems unlikely, due to space limitations and what one would have to fit in to enable USB-PD.

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Making this product fully PD compliant would obviously require maximum integration/minimization, ie. an ASIC that integrates all functionality(power conversion, protocol handling, USB Hub, etc.) into a single IC. Iā€™m not aware such a thing exists or that thereā€™s even sufficient demand for some chip manufacturing company to actually make and sell one.
Still, with the current proposal by @tbe it is very useful to many. Thanks for the work :slight_smile:

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Nah, kind of. Itā€™ll be a PD device to get 3A from the laptop (so you can draw ~1.5A per connected device), without PD negotiation it will limit the current to 1.5A total. You canā€™t charge the laptop through the hub tho.

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