Touch screen monitor screen size 15 inches max resolution 1 024 x 768 pixel lcd technology tn response time 8 ms aspect ratio 43 brightness 350 cdm number of dvi inputs 1 number of vga inputs 1 usb 20 ports 1 outputs rs232c function plug play ddc2b synchronisation separate sync convenience features multilingual osd kensington lock operating system compatibility mac os x windows 7 windows 8 windows 81 linux suitable for office vesa norm