Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y Amazing performance, blazing fast startups, brilliant HD video, and graphics, battery life that lasts as long as you do, and speed that keeps up with your imagination, that's what you'll find in the 6th Gen Intel® Core™ processors—Intel's best ever. Intel Core i3-6xxx DELL OptiPlex 5040, 3.7 GHz, Intel® Core™ i3, 4 GB, 500 GB, DVD±RW, Windows 7 Professional DELL OptiPlex 5040. Processor frequency: 3.7 GHz, Processor family: Intel® Core™ i3, Processor model: i3-6100. Internal memory: 4 GB, Internal memory type: DDR3L-SDRAM, Memory clock speed: 1600 MHz. Total storage capacity: 500 GB, Storage media: HDD, Optical drive type: DVD±RW. On-board graphics card model: Intel® HD Graphics 530. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 180 W. Chassis type: SFF. Product type: PC