Lenovo 10FY000QUS TS M800 i3/4GB/500GB Intel Core i3-6100 (2C, 3.7GHz, 3MB) Intel HD Graphics 530, Max 64GB Ram, 4 slots Windows 7 Professional 64-Bit With Windows 10 Pro Upgrade option DVD-Writer, DVD-RAM/R/RW, Energy Star, Security Slot Dimensions: 3.5" x 13.3 x 14.1 Port: 2 USB 2.0 Ports, 6 USB 3.0 Ports, VGA, Display Port, Keyboard & mouse included