Asus Desktop Mid Tower (D415MT-A46300005F) A4-Series APU A4-6300 (3.70 GHz) 4 GB DDR3 500 GB HDD AMD Radeon R7 Windows 7 Professional 64-Bit AMD A4-6300 3.7 GHz Processor 4 GB DDR3 RAM 500 GB 7200 rpm Hard Drive AMD Integrated Graphics Windows 7 Professional+Windows 8.1 Pro Key