Screen Size 21.5 inch LED Resolution 1920*1080 CPU Brand I3 I5 I7 Frequency Memory 4GB/8GB Hard disk 500GB/1TB Graphics Intel HD Graphics LAN 1000Mbit LAN Integrated Module WIFI 802.11 B/G/N Agreement,support 1000M LAN Camera 2.0M pixel Audio Hi-Definition Audio CODEC Stereo Speaker High Quality Mic I/O Interface Power port X1 Earphone-in jack X1 RJ45 port X1 VGA X1 USB2.0/3.0 X4 Microphone-out jack X1 Power Adaptor Input 100-240V AC, 50/60 Hz universal Output 12V DC, 6.5A, 78W Accessories Power Cable X1 Power adaptor X1 CD driver X1 User's manual X1 Keyboard X1 Mouse X1 Material Mg-Al alloy base, ABS plastic shell Color Available Silver, White Optional external USB CD/DVD driver can support Bluetooth can support SSD can support OS Compatible with Win7,Win8 Packing method Each unit in color box, 2 units/carton