HP ProLiant DL160 G6 E5606 1P 4GB-R 500W PS Entry Server. Processor clock speed: 2130 MHz, Processor upgrade: Upgradeable to two processors, Processor model: Intel Xeon E5606 (4 core, 2.13 GHz, 8MB L3, 80W). Number of hard drives supported: None ship standard. Internal memory: 4096 MB, Maximum internal memory: 192 GB, Memory slots: 12 DIMM slots. Optical drive type: None ship standard. Power supply type: (1) 500 Watt high efficiency multi-output