LTE Cat 4 Cell Modem Card
The LTE Cat 4 Cell Modem Card is a long-running community project to create a cellular LTE modem expansion card for Framework laptops. Originally proposed by engineer Tim Taylor in October 2021, the project has gone through multiple design iterations by different community members and companies, with the most recent active effort being an ultra-compact open-source design by Filip Stedronsky (Filip_S) based on the Quectel EG95 modem module.