... , Voltage and StaticAnti-scratchtouch resolution reach 4096*409 touch screen monitor EIR21.6L21.6“LCDBlack . silver gray10.4536.8326.8470.4260 ... IntensityOver 60,000,000 Single Point TouchOperation SystemDOS,WINDOWS9X/ME/2000/XP/2003/VISTA,LINUXOperating VoltageDC 5V ±5%Power SupplyKeyboard Serial ... drift,Do not change with the environmentLife Time10 Yearicd computer monitor