Cold Aisle Containment is a data center cooling strategy designed to improve energy efficiency. It involves enclosing the cold aisles, where cool air is supplied to servers, to prevent warm air from mixing with the cold air. This setup helps maintain optimal temperatures for equipment, reducing the need for excessive cooling. By using physical barriers, Cold Aisle Containment directs the flow of cold air directly to the server intakes. This method not only enhances cooling performance but also lowers energy costs, making data centers more sustainable and efficient in their operations.