An air baffle for optimizing thermal performance of memory components provided in a chassis is disclosed. The air baffle has a body and one or more venting units provided on the body. The body is configured to be removably coupled to the chassis. The body covers the memory components when coupled to the chassis. The one or more venting units direct air flowing through the chassis. Each of the venting units includes vent openings and a corresponding number of adjustable venting plates. The vent openings are each aligned with the memory components when the body is coupled to the chassis. Each of the adjustable venting plates have an open position or a closed position. A respective venting plate of the adjustable venting plates in the open position allows airflow through a respective vent opening of the vent openings. The respective venting plate of the adjustable venting plates in the closed position blocks airflow through the respective vent opening of the vent openings.