This is a plug-in cellular module for the GPD Pocket 3. It provides LTE Cat. 4 cellular connectivity using a Quectel EC25 (or compatible) module.
It's still a little bit of a prototype at this stage, but initial results are promising!
You can read more about it on my blog.
4 layers. JLC JLC04101H-7628 Impedance Controlled FR4.
HTML BOMs can be found in the bom/ directory.
Open an issue or drop me an email - me@ my blog domain.