HP's smallest dual processor socket workstation, the HP xw6600 combines very quiet operation and energy-efficiency in an unobtrusive, powerful and reliable mid-range system designed and engineered for the high performance your business needs. HP Workstation xw6600 - MT - 1 x Quad-Core Xeon E5420 / 2.5 GHz - RAM 2 GB - HDD 1 x 250 GB - no graphics - Gigabit Ethernet - Vista Business / XP Pro downgrade - Monitor : none