Keep Aruba 4000I PoE infrastructure powered with a 480 W AC DIN-rail supply designed for tight edge environments. This unit is built for installations where space is limited, cable routing must stay clean, and power continuity directly affects network uptime. The DIN-rail format supports orderly integration inside industrial or telecom-style enclosures, while the 480 W rating gives you the headroom needed for PoE-driven access and switching workloads. For teams standardizing on Aruba hardware, this power supply helps preserve a consistent deployment model across remote closets, branch sites, and edge cabinets. It is a practical choice when you need a purpose-fit replacement or expansion component rather than a generic supply that adds complexity. The result is simpler serviceability, cleaner rack or cabinet layouts, and a power path aligned to the platform it supports. Choose this PSU when the cost of downtime is higher than the cost of doing the power layer correctly the first time.