Headphone jack? And maybe even an SD card slot? #1
Description
After reading your thread on the Framework community, one idea I had is that, because the 16" Framework requires the user to "use up" one of the USB ports with the headphone jack expansion card if they want that, I was thinking that including a headphone jack in your expansion bay would be an easy way to essentially gain another full USB port in some situations.
The best part is that headphone jacks are much smaller than ethernet RJ45 ports (though that ix ethernet port is very interesting!), and DACs can be quite small nowadays.
Maybe that's an idea—simply including ports that currently require a dedicated expansion card that then allows the user to "free up" a port for other things. Maybe something like an SD card slot? I mean, there's not even an official full-sized Framework expansion card, and even at least a micro SD card slot similarly let's you "free up" a USB port.
(by the way, just to confirm: considering that you say there's not enough room for an RJ45 port, that means there's presumably not room to fit two expansion slots on-top of another, like in two rows of two／three, right?)