Deliver more bandwidth and more power where modern access networks need it most. The Extreme 4220-4MW-20P-4X is built for environments that are pushing beyond standard Gigabit access, with MultiGig connectivity that better matches high-performance wireless, advanced collaboration devices, and other demanding endpoints. Its 370 W PoE budget gives you room to power a broad mix of devices, while four 1G/2.5G/5GBASE-T ports rated at 90 W provide headroom for equipment that draws more than typical PoE switches can support. That makes it a strong fit for campuses, branch offices, and dense office floors where AP density and endpoint power requirements continue to rise. Stackable design adds operational flexibility for teams that want to grow without redesigning the access layer from scratch. Compared with lower-capacity switches, this model is built to reduce bottlenecks, limit power tradeoffs, and keep the network ready for higher-speed client and wireless demands.