AXIS T8310 Video Surveillance Control Board consists of three units that can be installed separately or together as one unit. AXIS T8311 gives responsive and accurate control of the pan, tilt and zoom functionality of the camera(s) on the network. AXIS T8312 is used to navigate quickly between workspaces, cameras, views and PTZ presets. AXIS T8313 is used to jog and shuttle through recorded video. All the units are powered through the USB connection.