Docking stations that may interface with various types of accessories. One example may physically and electrically support a connection to a portable computing device in either one or two orientations. One or more receptacles or dedicated or tethered cables may provide connections to one or more accessories. Examples may be able to authenticate and identify themselves to portable computing devices such that the devices know how to configure data outputs provided to the docking stations. An audio channel that converts digital audio signals and provides an analog audio signal at an audio jack may be included. Multiplexing circuitry that allows reversible connectors to be used may also be included.