HP Pavilion Elite HPE-430f Desktop PC (Black) (Discontinued by Manufacturer) Intel Core i5-650 Processor (3.2 GHz, 512KB L2 + 4MB Shared L3 Cache); 8GB PC3-10600 DDR3 SDRAM memory (4x2GB) (expandable to 16GB); 1TB (Terabyte) 7200 RPM Serial ATA hard drive; Genuine Windows 7 Home Premium 64-bit ATI Radeon HD 5570 graphics card (1GB DDR3 dedicated graphics memory) with support for Blu-ray and Microsoft DirectX 11; Combo Blu-ray/SuperMulti DVD Burner with LightScribe Technology; High Definition Audio with up to 7.1 surround sound capabilities External Ports: (Front) Headphone & Microphone, 3 USB 2.0; (Back) 4 USB 2.0, 1 FireWire (IEEE 1394), DVI, HDMI & DP available on the graphics card, Optical Audio Out, Microphone/Line-in/Line-out; Rear speaker-out, Side speaker out; Center (subwoofer) 10/100/1000Base-T network interface, Wireless LAN 802.11b/g/n HP USB keyboard and optical mouse, Front panel 15-in-1 memory card reader