15inch SAW touch screen 4,096 x 4,096 Z axis 256 scratch-free,hand ... touch screen panel technical specificationTechnologySurface Acoustic Wave(SAW) Sizes8.4” to 26” Controller Interface USB and RS232Resolution4096*4096MaterialPure ... TouchIntelligent discrimination by softwareDrivers Available Windows 2000, Windows XP, Windows NT, MAC, LinuxAgency ApprovalUL, CE, FCC, RoHS , CB 15 inch touch screen