Support modern edge networks that need more than basic access switching. The Extreme 4220 12-port switch combines 4 MultiGig PoE ports, 8 Gigabit PoE ports, and 4 SFP+ uplinks in a compact stackable design, giving infrastructure teams the port mix needed for phones, cameras, wireless access points, and higher-speed endpoints. A 240 W PoE budget provides enough power for demanding deployments without forcing separate injectors across the rack. The 4 MultiGig ports support 1G, 2.5G, and 5GBase-T speeds, which is useful when Wi-Fi access points or other edge devices outgrow standard Gigabit links. The 8 additional 10/100/1000Base-T PoE ports handle the rest of the access layer with straightforward connectivity. Silent mode operation up to 35 C and a fixed AC power supply make this switch a practical fit for branch offices, open office closets, and shared spaces where noise and simplicity matter. Compared with lower-tier access switches, this model offers more flexibility at the edge, better uplink options, and the power budget needed to support mixed endpoint generations.