Apple 922-9806 power supply pressure wall bracket for 21.5-inch iMac Mid 2011 (model A1311). This internal mounting component secures and positions the power supply unit within the iMac enclosure, ensuring proper airflow and thermal management. Compatible exclusively with Mid 2011 21.5-inch iMac systems. OEM part sourced from Apple's original specifications. Commonly required for power supply replacement, case repair, or system rebuild on this generation. This component has been tested and guaranteed functional; available via quote.