[pimterry]

I don't think anybody outside Framework knows for sure yet (maybe not even internally) but my impression from what they've shared so far is that the expansion bays are intended to be very easily swappable (external, a click & push like the expansion slots) but almost certainly not hot-swappable while the machine is powered on.

They do have some initial specs at https://github.com/FrameworkComputer/ExpansionBay that somebody more knowledgeable than me might be able to glean some practical info from.

[danShumway]

Hot swapping would be amazing, but I wasn't really expecting that to be supported.

The images/videos I'm seeing linked in your reply and sibling replies are basically about as good as I would hope for, that it would be the equivalent of swapping out a battery, that it wouldn't require a screwdriver, and that the components wouldn't be so fragile that I couldn't carry them in a backpack or computer case. Definitely something I'll be paying more attention to.

If somehow it is hot-swappable then even better of course, but I'm assuming that wouldn't be the case.