ThinkCentre M73 Core i5 Small Form Factor w/ Windows 7 Professional
Small Form Factor - Intel Core i5-4570 3.2GHz Quad-Core (3.6GHz Turbo) - 4GB (Max 16GB) - 500GB 7200RPM - DVD Writer - Intel HD 4600 Graphics - Gigabit LAN - Windows 7 Professional from Windows 8 Professional Downgrade Rights - 3 Year On-Site Mfg. Warranty