The TPK-65 is a Joy Stick / Keyboard that will allow you to control up to 255 PTZs. This is a very useful tool if you want to be able to control the PTZ with a joystick rather than using a mouse from a computer or at the DVR. Also, you can run a cable from the PTZ to this joystick at a different location from the DVR. This PTZ joystick has a backlight LCD display and supports multiple preset functions. It does not take up a lot of room on the desk, but has a very solid feel.