HP xw6400 Intel® Xeon® 2.66GHz 1GB/73GB DVD+/-RW WXP Pro Workstation. Processor family: Intel, Processor clock speed: 2.66 GHz, Processor front side bus: 1333 MHz. Internal memory: 1 GB, Internal memory type: DDR2-SDRAM, Memory slots: 4 DIMM slots. Hard drive rotational speed: 15000 RPM. Optical drive type: DVD±RW DL. Chassis type: Mini Tower