HP xw6400 Intel® Xeon® 2.0GHz 1GB/160GB DVD/CD-RW WXP Pro Workstation. Processor family: Intel Xeon, Processor clock speed: 2 GHz, Processor front side bus: 1333 MHz. Internal memory: 1 GB, Internal memory type: DDR2, Memory slots: 4 DIMM slots. Hard drive rotational speed: 7200 RPM. Optical drive type: 48x DVD/CD-RW Combo. Chassis type: Mini Tower