Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y Legacy Intel® Core™ Processor Intel Core i3-3xxx LG Z70PS-A559S, 3.3 GHz, Intel® Core™ i3, 4 GB, 500 GB, DVD Super Multi, Windows 7 Home Premium LG Z70PS-A559S. Processor frequency: 3.3 GHz, Processor family: Intel® Core™ i3, Processor model: i3-3220. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 500 GB, Storage media: HDD, Optical drive type: DVD Super Multi. On-board graphics card model: Intel® HD Graphics 2500. Operating system installed: Windows 7 Home Premium, Operating system architecture: 64-bit. Power supply: 270 W. Product type: PC. Weight: 7.3 kg. Product colour: Black