An information processing device includes a housing part; a heating part arranged in the housing part; a cooling unit configured to cool the heating part; an airflow supplying member configured to supply an airflow to the cooling unit; and an airflow limitation member configured to limit the airflow supplied by the airflow supplying member. A part of the cooling unit, the airflow limitation member, and the airflow supplying member are arranged in series. An air intake part is provided in one surface of the housing part so as to intake air into the airflow limitation member. An air discharge part is provided in another surface of the housing part so as to discharge air cooling the part of the cooling unit. An air discharge unit is provided at an air discharge opening provided at one side surface of the airflow limitation member.