An apparatus may include an actuator, a heat-rejecting medium, and a receptacle for receiving a pluggable module. The pluggable module may be operable to be inserted into the receptacle in a first direction. The actuator may be operable to be translated in the first direction by the insertion of the pluggable module into the receptacle. The heat-rejecting medium may be operable to be translated in a second, different direction by the actuator when the actuator is translated in the first direction. The translation of the heat-rejecting medium in the second direction may be operable to cause the heat-rejecting medium to become thermally coupled to the pluggable module when the pluggable module is inserted into the receptacle.