Imagine a phone that has the backplate swappability of the CMF Phone 1, but this time, there’s an I/O interface. Characterized by a 24-contact pad array on the underside of the backplate, this new interface is just a modified USB-C interface with the phone. This allows anything to go back there, such as an extra battery to improve battery life, a larger camera sensor, a game controller, whatever the community can imagine.