Provide 32 high-speed 400GbE interfaces for data-center switching fabrics that need dense uplinks, spine connectivity, or aggregation capacity in a fixed rack-mounted platform. The 8722-32C platform uses QSFP-DD ports, giving network teams a high-density physical interface layout for 400GbE optical and direct-attach connectivity. It fits deployments where port density and consistent high-bandwidth interconnects matter more than access-layer copper connectivity. The 8722-32C-DC-R configuration is supplied with DC power and back-to-front fan airflow. Those hardware details matter when matching a switch to a facility's DC power plant and established hot-aisle or cold-aisle airflow design. Back-to-front cooling should align with the rack airflow direction before installation, particularly in rows containing equipment with a defined front-to-back or reverse-airflow pattern. Use this switch where a 32-port 400GbE form factor is required instead of a lower-speed access switch or a platform built around mixed copper interfaces. QSFP-DD connectivity supports the physical density expected in high-bandwidth fabric designs while retaining a fixed-port architecture. The DC-powered, back-to-front airflow configuration distinguishes this version for environments that standardize on those infrastructure choices.