HP D4898-69024 - Power monitor controller board - Monitors the power output from the hot-swap power supplies Retail
HP P2521-69017 - Hot-swap redundant power supply - 100-240V autoranging, 50/60Hz, 425Watt-max output Retail
HP D8520-63001 - Redundant hot swap power supply - Autoranging 100-240VAC input, 350 watts - Located in the back of the chassis Retail
