... 3, may want to choose desktop, or vertical; 4, touch screen touch screen using infrared sensors; high-density infrared tubes, light stability, ... and high sensitivity. 5, support USB/PS2/RS232 interface; 6, whole new shape, beautiful strong, simple, high-grade appearance ... heat evenly; 10, the front shell can lock the touch screen, simple installation, easy maintenance; 11, quality assurance and price ...