Specifications: Screen proportion: 16:09 Contrast ratio: 1, 500: 1 Brightness: 450cd/m2 Response time: 5ms Touch screen resolution: 4, 096*4, 096p Image resolution: 480/720/1, 080p Multi points touch screen: 2/4/6 points Operating systems: supports microsoft's windows 8/7/xp/2000/linux unix Scanning systems: pal, ntsc/secam (optional) Sound system: bg, dk, i, (m/n, l, l optional) Channel storage: 200 Usb interfaces: supports avi, mp4, ts, trp, mkv, mov, mpg, rm, rmvb, dat, vob, mp3, wma, aac, m4a, jpg, jpeg, bmp, png (mpeg-2, mpeg-4, h.264) High-definition: supports 480i, 480p, 720i, 720p Cpu: intel core i7/i52300/i32100/g645/celeron cpu 1, 155 pins Memory: ddr3 1, 333mhz 2/4/8gb Hard disk: sata 320g (option 500g/1tb/1.5t and more) Interface: hdmi ¡¨¢ 1, vga¡¨¢1, usb ¡¨¢ 4, rj¡¨¢1, pc audio ¡¨¢ 1, mic ¡¨¢ 1 Tempered glass: gb/t thickness: 4mm Languages: supports multinational languages Power input: 110-240v ac 50/60hz Maximum consumption power: ¡§q130w Standby: