An apparatus (100, 200, 300, 400, 1100) comprising: a power enclosure electrically coupled to a power supply module of a computing device; a power connector that: is electrically coupled to a power cable configured to carry electric current to the power supply module via the power enclosure; and is dimensioned to mate with the power enclosure; and at least one power switch that: is electrically coupled to the power enclosure; is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure; and when engaged by the feature of the power connector, enables electric current to flow from the power connector to the power supply module via the power enclosure; characterised in that: the feature of the power connector includes at least one screw; the power enclosure includes at least one screw hole fitted to accept the screw; the power switch comprises a plate (1202, 1202) positioned to contact the screw of the power connector when the power connector is fully mated with the power enclosure; the contact between the screw and the plate causes a signal indicative of the power connector being fully mated with the power enclosure to propagate to the power enclosure; and in response to the signal, the power enclosure enables the electric current to flow from the power connector to the power supply module via the power enclosure. a power enclosure electrically coupled to a power supply module of a computing device; a power connector that: is electrically coupled to a power cable configured to carry electric current to the power supply module via the power enclosure; and is dimensioned to mate with the power enclosure; and at least one power switch that: is electrically coupled to the power enclosure; is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure; and when engaged by the feature of the power connector, enables electric current to flow from the power connector to the power supply module via the power enclosure; characterised in that: the feature of the power connector includes at least one screw; the power enclosure includes at least one screw hole fitted to accept the screw; the power switch comprises a plate (1202, 1202) positioned to contact the screw of the power connector when the power connector is fully mated with the power enclosure; the contact between the screw and the plate causes a signal indicative of the power connector being fully mated with the power enclosure to propagate to the power enclosure; and in response to the signal, the power enclosure enables the electric current to flow from the power connector to the power supply module via the power enclosure. is electrically coupled to a power cable configured to carry electric current to the power supply module via the power enclosure; and is dimensioned to mate with the power enclosure; and at least one power switch that: is electrically coupled to the power enclosure; is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure; and when engaged by the feature of the power connector, enables electric current to flow from the power connector to the power supply module via the power enclosure; characterised in that: the feature of the power connector includes at least one screw; the power enclosure includes at least one screw hole fitted to accept the screw; the power switch comprises a plate (1202, 1202) positioned to contact the screw of the power connector when the power connector is fully mated with the power enclosure; the contact between the screw and the plate causes a signal indicative of the power connector being fully mated with the power enclosure to propagate to the power enclosure; and in response to the signal, the power enclosure enables the electric current to flow from the power connector to the power supply module via the power enclosure. is electrically coupled to the power enclosure; is configured to be engaged by at least one feature of the power connector while the power connector is fully mated with the power enclosure; and when engaged by the feature of the power connector, enables electric current to flow from the power connector to the power supply module via the power enclosure; characterised in that: the feature of the power connector includes at least one screw; the power enclosure includes at least one screw hole fitted to accept the screw; the power switch comprises a plate (1202, 1202) positioned to contact the screw of the power connector when the power connector is fully mated with the power enclosure; the contact between the screw and the plate causes a signal indicative of the power connector being fully mated with the power enclosure to propagate to the power enclosure; and in response to the signal, the power enclosure enables the electric current to flow from the power connector to the power supply module via the power enclosure. the feature of the power connector includes at least one screw; the power enclosure includes at least one screw hole fitted to accept the screw; the power switch comprises a plate (1202, 1202) positioned to contact the screw of the power connector when the power connector is fully mated with the power enclosure; the contact between the screw and the plate causes a signal indicative of the power connector being fully mated with the power enclosure to propagate to the power enclosure; and in response to the signal, the power enclosure enables the electric current to flow from the power connector to the power supply module via the power enclosure.