HP JL821A 4000i PoE 12-48VDC 54VDC 240W DIN power supply

Aruba 4000i PoE DIN Power Supply

This HP JL821A module delivers 240 watts at 54 V DC for Aruba 4000i switches. It accepts a wide 12 to 48 V DC input range and mounts on a standard DIN rail. The unit is designed to provide Power over Ethernet budget for connected devices in industrial or campus networks.

Suits network teams powering PoE gear

Not for installations that require AC mains input or higher PoE budgets beyond 240 watts. Buyers needing redundant hot-swap supplies or AC-fed chassis should evaluate alternative Aruba power options.