Build a high-density 25 GbE server-facing tier with 48 SFP28 ports and eight QSFP28 ports for 100 GbE uplinks. The 8522-48Y-8C port mix suits leaf-and-spine designs that concentrate compute, storage, and east-west traffic at the rack or row level. SFP28 host connections preserve a compact optical interface density, while the QSFP28 interfaces provide higher-bandwidth paths toward aggregation or spine layers. Extreme Networks 8522-48Y-8C-DC-F provides the 48Y-and-8C configuration for data center fabrics that need many 25 GbE edge connections without consuming separate switch ports for uplinks. Use the 48 25G interfaces for servers, storage nodes, or high-throughput appliances, and reserve the eight 100G interfaces for fabric interconnects. This port allocation is particularly useful where rack-scale compute clusters require predictable host-to-uplink ratios. The supplied configuration includes an AC power supply and front-to-back fans. Front-to-back airflow aligns with rack layouts that move intake air through the front of the chassis and exhaust it toward the rear, helping maintain a consistent airflow direction alongside adjacent infrastructure. Select this configuration when the required interface density is 48 25G SFP28 connections plus 8 100G QSFP28 connections and the rack uses front-to-back cooling.