... image clarity,Long life-spa Specifications17 inch touchscreen TechnologySurface Acoustic Wave(SAW)Sizes 17"Controller InterfaceUSB OR RS232Resolution4096*4096 ... % per ASTMTouch MaterialFinger, Soft Rubber PenTouch ActivationForce30,adjustableDurabilityScratch-free; More than 50,000,000 touches in one locationwithout ... sided glue, dust-proof stripesAgency ApprovalCE, FCC, RoHS, 17 inch touchscreen