Lenovo ThinkCentre M73 10AY001RUS Tiny Desktop (2.9GHz Intel Core i3-4130T Processor, 4 GB RAM, 500 GB Hard Drive, No Optical Drive, Windows 7 Pro 64-bit) Black (Discontinued by Manufacturer) Intel Core i3-4130T Processor (2 cores / 4 threads, 2.9GHz, 3MB cache), Intel HD Graphics 4400, 1600MHz DDR3 memory controller 4 GB DDR3 RAM 500 GB 7200 rpm Hard Drive Integrated Intel HD Graphics Windows 7 Pro 64 preload w/ Windows 8 Pro 64 RDVD, License