Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y Flex IT HP Compaq 6300 Pro SFF (Refurbished), 3.2 GHz, Intel® Core™ i5, 4 GB, 500 GB, DVD±RW, Windows 8 Pro Flex IT HP Compaq 6300 Pro SFF (Refurbished). Processor frequency: 3.2 GHz, Processor family: Intel® Core™ i5, Processor model: i5-3470. Internal memory: 4 GB. Total storage capacity: 500 GB, Optical drive type: DVD±RW. Operating system installed: Windows 8 Pro