a rendering of a small pcb with a shielded rf module and a ffc connector. it slots into the back of the body of reform next, with a cutout that a piece of plastic is meant to occupy (so that your wifi doesn't have to penetrate the aluminium laptop chassis)
https://assets.chaos.social/media_attachments/files/113/111/940/222/711/148/original/d321c78edf3877ef.png