ThinkCentre Edge72 (3x3 Tower), Intel Core i3-3220 Processor, 3.3GHz, 3MB Cache, 4GB Memory(1), 500GB HDD(2), Genuine Windows 7 Professional 64(3), DVD Recordable, Integrated Intel Graphics, Gigabit Ethernet Adapter, Internal Mono Speaker, Integrated Audio, Lenovo Slim USB Keyboard, Lenovo Enhanced…