US Patent 9678537 Mobile device case and peripheral system

A mobile device case having a first port and a second port, both for interfacing with a mobile device and a third port electrically connected to both the first port and the second port, the third port for interfacing with a peripheral. In one embodiment, the first port may be for power and the second port may be for data, and the third port may be a circular port having rings of conductive material electrically connected to either the first port or the second port. In one embodiment, the third port may further be recessed into a back surface of the case, and walls of the recessed segment may be used as a portion of a support system for removably fixing peripherals to the third port.