Dell Optiplex 3020 Flapship Micro Desktop | Intel i5 Quad-Core |8GB Memory | 500GB SSD Hybrid | Keyboard | Mouse | USB 3.0 | Windows 8.1 Pro Ultracompact, energy efficient desktop with versatile deployment options, including a range of custom mounts. Intel Core i5-4590T 2.0GHz (Turbo up to 3.0GHz) Quad-Core / 6MB Smart Cache, 8GB DDR3 SDRAM system memory, 500GB Solid State Hybrid Drive Intel HD Graphics 4400, Integrated Audio, Support Dual Monitor (DisplayPort, VGA), USB Keyboard & Optical Mouse Included Rear Ports: (1) DisplayPort, (1) VGA, (1) USB 3.0, (3) USB 2.0, (1) RJ-45 LAN; Front Ports: (2) USB 3.0, (1) Headphone, (1) Microphone Windows 8.1 Professional (64-bit) (with Free upgrade to Windows 10)