... ,net card, sound card,integrated display card,2.SAW Touch screen:Screen size:15 ,17 19 20,22 inchMaterial: standard pure glass with ... plastic-spray, different colors for optionalBuilt-in power control panel and hi-fi speakersTwo cooling fans for computer board and ... trackball,stainless steel,waterproof,encrypted ; 5.High quality camera; 6.WiFi for internet connectionWarranty: One year as a whole machine ...