This is an HP 1200W 12V Hotplug AC Power Supply (one only).NOTE: Two Hot Plug Power Supplies needed for standard operation. Four Hot Plug Power Supplies needed to add redundancy. Configurations with 3 or 4 processors that will use low line (110V) input power require four Hot Plug Power Supplies.
Product Title: HP (Hewlett-Packard) 1200W AC Power Supply
Manufacturer: HP (Hewlett-Packard)
Parent Retsku: B000VDL8OS