1. 3D PTZ keyboard controller 2. Support RS485/RS232/RS422 communication port; USB port 3. Can connect 4 controllers 4.CE,FCC Key features:1) Professional controller, elegant design2) 2.5 inch high resolution TNT LCD display, can show cameras image, video input3) 2D,3D, rotating joystick, easy to control4) OSD edit menu in English or Chinese, can adjust PTZ controls parameter, easy to operate5) ...