One example of a system includes a blade enclosure and a midplane within the blade enclosure. The midplane supports a first sleeve connector and a second sleeve connector, where each of the first and second sleeve connectors have a first side and a second side. A server blade installed in the blade enclosure includes an air duct coupled to the first side of the first sleeve connector. A cooling module including an air manifold is coupled to the second side of the first sleeve connector to deliver cool air to the air duct of the server blade.