US Patent 9288295 Modular mobile device case

In preferred embodiments, an expandable and modular protective mobile device case apparatus comprises a protective shell configured to receive a mobile device; a circuit board located within the protective shell said circuit board comprising a USB hub and a mode selection switch, wherein the USB hub is in electrical communication with the mode selection switch; and a male plug member in electrical communication with the mode selection switch and configured to transfer electrical signals from the mode selection switch to the mobile device.