Dell OptiPlex 3010 DT Core i3-3220 3.3GHz 4GB 250GB DVD+/-RW WINDOWS 7 PRO 64-Bit HD6450 Processor: Intel Core i3-3220 3.30GHz; 2 Cores, 4 Threads; 3MB L3 Cache; Memory: 4GB DDR3 Installed; Hard Drive: 250GB 3.5" SATA Operating System: Windows 7 Professional 64-Bit Installed with Recovery Partition and COA (Certificate Of Authenticity); Optical Storage: CD/DVD+/-RW Super Combo; Power Supply: 240 Watt Graphics: AMD Radeon HD 6450 (HD6450) 1GB RAM; 1 DisplayPort, 1 DVI; Audio: Integrated HD Audio Controller; Communication: Integrated Gigabit Ethernet Controller 10/100/1000 Front I/O Ports: 2 USB 2.0, 1 Headphone / Audio Out, 1 Microphone / Audio In Rear I/O Ports: 6 USB 2.0, 1 HDMI (disabled by installed video card), 1 VGA (disabled by installed video card), 1 DisplayPort (on installed video card), 1 DVI (on installed video card), 1 Audio Out, 1 Audio In/Out, 1 Ethernet (RJ-45)