This application discusses, among other things, multiple interface detection circuits configured to connect with a mobile electronic device connector. In an example, a multiple interface detection circuit can include a first comparator to compare a bus voltage of the mobile electronic device connector with a first threshold and to provide a first control signal, a second comparator to compare the bus voltage of the mobile electronic device connector with the first threshold and to provide a second control signal, a third comparator to compare the bus voltage of the mobile electronic device connector with a second threshold and to provide a third control signal, and a switch control configured to switch one or more signals of the connector.