Lenovo ThinkCentre M93z 23-Inch All-in-One Desktop (10AF0003US) (Discontinued by Manufacturer) Intel Core i5-4570S 2.9 GHz Manufacturer Warranty: 3 years warranty 500 GB 7200 rpm Hard Drive with 4GB DDR3 23-Inch Screen Windows 7 Pro 64 preload w/ Windows 8 Pro 64 RDVD, License