Lenovo Thinkstation S20 Tower

Model: 4157F1A Main Features Processor : Intel Xeon Processor W3530 ( 2.88GHz 1066MHz ) Operating system : Genuine Windows 7 Professional 64 System graphics : NVIDIA Quadro FX 580 512MB Total memory : 4 GB DDR3 SDRAM 1333MHz Hard drive device : 500GB Optical device : DVD Recordable Form Factor : Tower Warranty : Three year parts and labour Pointing device : USB Optical Wheel Mouse