[nrp]

We've designed the Expansion Bay module system to be able to handle power bi-directionally. One of the main reasons for this was to enable secondary batteries. This specific module isn't something we've shared any plans around, but it's something that either we or a third party would be able to build.

https://github.com/FrameworkComputer/ExpansionBay

[CarVac]

Does the empty expansion bay shell have provisions for mounting other things inside, like an m.2 expansion?

Or would those have to come as a separate expansion module?

[nrp]

The Expansion Bay Shell has an open area in the center for additional modules. We shared a preview of one of the modules that we're building, which is a dual M.2 storage carrier.