Dell Precision T3420. 6th Gen Intel Core i7-6700 (Quad Core 3.40GHz, 4.0Ghz Turbo, 8MB, w/HD Graphics 530). 8GB (2x4GB) 2133MHz DDR4 Non-ECC. 1TB, 3.5" SATA (7,200 RPM) Hard Drive. Windows 7 Professional English, French, Spanish 64bit (Includes Windows 10 Pro License). 8X Slimline DVD +/-RW drive. Integrated Graphics included. Dell KB216 Wired Keyboard English Black. Dell MS116 Wired Mouse Black. Intel vPro Technology Enabled. 4 USB 2.0 (2 front, 2 rear) 6 USB 3.0 (2 front, 4 rear) 1 Universal Audio Jack 1 Internal SD Card reader (Optional) 3 SATA 6Gb/s 2 PS2 2 DisplayPort 1 HDMI 1 RJ45 Network Connector 1 Serial 1 Audio Line out 1 VGA Connector (Optional).