HP P2521-69017 - Hot-swap redundant power supply - 100-240V autoranging, 50/60Hz, 425Watt-max output Retail
HP P3537-69011 - System processor board - Has two processor sockets, four DIMM slots, and six PCI slots Retail
HP P3537-67010 - Front control panel - PC board that has power and reset buttons with status, power, LAN, and lock LEDs Retail
HP P3537-63021 - Misc. signal cable - From the power distribution board to the system board, 43.2cm (17in) long Retail
