... , 2x Video, one with auto-switching with signal on• USB port, USB and serial touch connection• extra reinforced and high-quality components for ... prevent abrasion• built-in stylus pen with cord fixation on housing• metal rail and VESA-75 mounting on the back of ... explicit suitable for 24/7-operation• Back Light LED with 250nits brightness and 20,000h operation time, for project customers are series ...