Framework 16 to MXM GPU Adapter
The Framework 16 to MXM GPU Adapter is an open-source community project by Joe Shapiro (GitHub: JJ-Shapiro) that aims to create a custom PCB adapter allowing standard MXM mobile GPU modules to be used in the Framework Laptop 16's expansion bay. If successful, it would enable users to install a wide range of mobile GPUs — including Nvidia MXM modules such as the mobile RTX 4090 — into their Framework 16.
MXM GPU + Dell E-Port Expansion Bay Adapter
The MXM GPU + Dell E-Port Expansion Bay Adapter is an open-source community hardware project by WifiCable (GitHub: a-little-wifi) that combines an MXM GPU slot with a Dell E-Port dock connector on a single board designed for the Framework Laptop 16's expansion bay. The project was started when the Framework 16 was announced, but the author states it is "very unfinished" and they do not plan to continue development since they did not purchase the laptop.