Build data-center switching capacity around 32 QSFP-DD interfaces, with 2 10G SFP+ interfaces available in the same chassis. Aruba R9A30A#B2E packages the 9300-32D configuration with 6 fans, 2 AC power supplies, and back-to-front airflow for installations planned around that cooling direction. It is a fixed configuration within the Aruba CX 9300 family for high-port-density switching rather than a low-port-count access-switch role. The 32 QSFP-DD ports are the defining interface set for this configuration. They allow a network design to concentrate high-density QSFP-DD connections in one platform, while the 2 10G SFP+ ports provide separate 10 Gigabit connectivity. Select this switch where both the interface count and the supplied power-and-cooling configuration match the rack design; airflow direction matters when aligning equipment with hot-aisle and cold-aisle layouts. This bundle includes the fan and AC PSU quantities stated for the chassis: 6 fans and 2 AC power supplies, with 220 V identified for the AC PSU bundle. The back-to-front airflow configuration distinguishes it from units intended for the opposite rack cooling path. Assess required optical modules, cabling, and port-speed design separately, since those choices determine how the QSFP-DD and SFP+ interfaces are populated.