HPE Aruba Networking 5400R 700W PoE+ zl2 Power Supply (J9828A) is a hot-swappable internal power supply designed for the HPE Aruba Networking 5400R zl2 Switch Series. Delivering up to 700 watts of power, it provides reliable system and PoE+ power for supported line cards while enabling power supply redundancy for enhanced network availability. Its high-efficiency design helps ensure continuous operation in enterprise campus and aggregation environments.