Business Desktop D8C46UT Desktop Computer - Intel Core i5 i5-3470 3.20 GHz - Micro Tower Microtower Desktop Windows 7 Professional 64 (available through downgrade rights from Windows 8 Pro) Intel Core i5-3470 with Intel HD Graphics 2500 (3.20 GHz, 6 MB cache, 4 cores) 4 GB 1333 MHz DDR3 SDRAM 500GB 7200RPM SATA 3.0Gb/s Hard Drive