ViewSonic VPC221 21.5-Inch LED All-In-One PC (Black) (Discontinued by Manufacturer) Intel Core i3 1.66GHz CPU, nVidia GT330M Series GPU, Windows 7 Professional OS Native 1920x1080 21.5"LED, High Brightness 300 cd/m2, 30,000,000:1 Dynamic Contrast 500GB HD, 2x2GB DDR 3 RAM, Integrated Multi DVD/CD RW, 6 x High Speed USB 2.0 ports 4-in-1 Card Reader (XD/SD/MMC/MS), 1.3MB Webcam and Microphone, Advanced Ergonomics with 4-way adjust (Height, tilt, swivel, pivot) Gigabit Ethernet, Integrated 802.11 b/g/n, USB keyboard & mouse included