I finally tracked down the pop out ethernet port used on lines of fujistu laptops.
These would allow for the same size expansion ports as the regular ports to be used on the laptops. I have endeavored to attempt to make a 2.5gbe or 5gbe controller using the port. If anyone wants to beat me to the end goal feel free…
Awesome find! Damn they’re expensive.
Do you have a footprint and/or measurements?
I think fitting all the required circuitry and the entire popout is going to be quite hard. You also need an IC that can do USB-C ↔ 5Gb ethernet, but you’ll likely require an NDA for the datasheets of any chip.
I also think shielding might be an issue. The only products with plastic (unshielded) ports that I have seen are up to 1Gb.
This discussion might be of interest to you. Reddit - Dive into anything
I just bought a cheap 2,5gb usbc dongle, wavelink I think. (10$) I’m gonna gut it and see what components they use and just make a customs pcb then transplant everything… I’m not worried about shielding or anything, I don’t need the fcc to approve me to tinker… if it’s really an issue I can just get copper tape and line the inside of the dongle and make a little faraday cage… I’m still waiting for the port to come in. I found one on eBay a bit cheaper, but I have to see the thing to even get an idea if it’s fit… I’m sure it will…
I’d probably start with something like this instead.
https://www.aliexpress.com/item/1005005538195245.html
It would require designing your own retaining clip, but you could make something far more solid (not sliding) with an edge of TPU around it like a laptop foot, while keeping the module flush at the side.
