18.1inch SAW touch screen 4,096 x 4,096 Z ... Controller technical specificationSizes(PCB)85mm*55mm*10mm Working voltage5V±0.5V for KCA-UR01L-R1D or 12V±2V for KCA-UR01H ... Current80mA for 12V controller 70mA for 5V controllerMaximum Current100mA for 12V controller 90mA for 5V controllerResolution 4096*4096, Z-axis 256 ... XP, Windows NT, MAC, LinuxAgency ApprovalUL, CE, FCC, RoHS , CB 18.1inch touch screen