Which of the following ensures that air is passed through a server chassis correctly?

U-size templates refer to the standardized rack unit measurements for equipment, not internal airflow management.

Phase changers are advanced cooling technologies that involve a material changing phase (e.g., liquid to gas) to absorb heat, which is different from passive airflow direction within a chassis.

Baffles are physical barriers or plates strategically placed inside a server chassis to channel air over specific components, preventing hot spots and ensuring efficient heat dissipation. This directed airflow is crucial for maintaining optimal operating temperatures and the longevity of server hardware.

Molex connectors are types of electrical connectors used for power in computer systems, not for airflow management.