A low profile connector system. In one set of embodiments, a low profile plug receptacle is provided that is thinner than a standard plug receptacle, thereby allowing the plug receptacle to be incorporated in small form factor (e.g., very thin) electronic devices while maintaining compatibility with standard plug connectors. In another set of embodiments, different types of custom plug connectors are provided that can improve the aesthetics of an electronic device housing the low profile plug receptacle when the custom plug connector is attached. In another set of embodiments, features are provided for preventing a plug connector from unintentionally falling out of, or coming loose from, the low profile plug receptacle and/or preventing a plug connector from rotating within the receptacle.