Lenovo ThinkCentre M83 SFF Desktop -(Intel Core i7 Processor, 4GB DDR3 Memory, 1TB 7200rpm HDD, Windows 8.1 Professional) Black

Compact Design Can Fit Into Tight Spaces - Energy-Efficient, Green Design Saves You Money - Platform Stability Ensures Long-Term Reliability Processor: Intel Core i7-4790 Processor (8M Cache, up to 4.00 GHz) Operating system: Windows 8.1 Professional 64 - Graphics: Intel HD Graphics 4600 Installed Memory: 4GB PC3-12800 DDR3 1600MHz SDRAM UDIMM Memory. Hard Drive: 1TB, 7200RPM Serial ATA 3.5 Hard Drive - Optical Drive: DVD Recordable Serial ATA