A jack receptacle for a plug connector is configured with a receptacle profile having one or more keying features disposed on a removable bezel which correspond to complementary keying features formed on a plug connector. The jack receptacle with removable keyed bezel can be configured to allow only plug connectors with the corresponding keying features to mate therewith, while preventing plugs without the corresponding keying features from mating. These features can prevent non-certified devices from being plugged into a power-delivering data circuit, and also permit the keying of receptacles with removable bezels based on ratings for transmission of different power levels. Other embodiments of the keyed jack receptacle can be configured to allow both plug connectors with the corresponding keying features and plug connectors without the corresponding keying features from mating therewith. This provides a means to migrate specific circuits within the system to limited power usage.