HP 550t 500 Series Home / Business 550 Desktop PC - Intel core i3-4170 Processor - 8GB RAM - 1TB 7200RPM Hard Drive - DVD&plusmn;RW drive - WiFi - Bluetooth - HDMI - Windows 7 Professional Intel Core i3-4170 3.7GHz ( 3M Cache ) Processor for smooth operation / Windows 7 Professional 64bit operating system 8GB DDR3 1600MHz RAM / Intel HD Graphics 4400 for enhanced visuals / HP 7-in-1 media card reader supports multiple formats 1TB 7200 RPM Serial ATA hard drive for faster data transfer and lots of storage / SuperMulti DVD burner ( Reads and writes to the DVD/CD).High-definition audio with up to 5.1 surround sound capabilities Integrated Bluetooth 4.0 and Wireless LAN 802.11b/g/n featuring single-band (2.4 Ghz) 1x1 technology / No Monitor or external speaker included. 2 USB 2.0 and 4 USB 3.0 ports, headphone/microphone combo, HDMI OUT / USB Keyboard and Mouse.