Item:21.5inch all in one pc
Color:Silver
Size:21.5''
Display Proportion                     (16:9)
Resolution                                  1920(horizontal)  x 1080(vertical)
Processor                                    intel Core i5 3.0GHz(dual core)
Mainboard                                    H61
Memory                                         2GB/DDR3/1066MHz
Hard Disc                                     320GB
HD Type                                        2.5'' SATA / 5400rpm  
Type of Graphic Memory            Integrated Graphic Card
DVD Writer                                    Yes
WIFI                                                Yes
Webcam                                        Yes
Card reader                                  Four in one card reader

Tips:
Optional:Touch screen,Bluetooth
CPU Optional: Intel Atom D525 1.8GHz;Intel core i3 3.1GHz;Intel Core i5 3.0GHz;
                           Intel Core i7 3.4GHz; 
RAM Optional: 2GB;4GB;8GB;
HDD Optional:160GB;250GB;320GB;500GB;1TB;
Color Optinal:Black/White/Golden/Silver