Abstract: An air conducting device includes a body, a baffle and a plurality of tongues. The body defines an airflow passageway therein. The baffle extends from the body to divide the airflow passageway into a first passageway and a second passageway. The first passageway is capable of receiving at least one first heat generating component therein. The second passageway is capable of receiving at least one second heat generating component therein. The first heat generating component is located in one of a plurality a slots. A plurality of tongues are located in the first passageway. Each tongue corresponds to the location of the plurality of slots. A guide channel is defined between every two adjacent tongues.