Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y Intel® Pentium® Intel Pentium Lenovo ThinkCentre Edge M72e, 2.9 GHz, Intel® Pentium®, 2 GB, 500 GB, DVD±RW, Windows 7 Professional Lenovo ThinkCentre Edge M72e. Processor frequency: 2.9 GHz, Processor family: Intel® Pentium®, Processor: G850. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 500 GB, Storage media: HDD, Optical drive type: DVD±RW. On-board graphics card model: Intel® HD Graphics. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 240 W. Chassis type: SFF. Product type: PC