The 5inch caravan monitor support two cameras and whilst each kit displays only one camera an additional camera and cable can be added to a kit by clicking on the TAB "Add Extra Camera". The additional camera is usually installed at the rear of the vehicle for backing up to the caravan and/or using the camera as a rear-view camera when not towing the caravan. The kit prices include a one camera suzie cable that includes a 10m cable running from the monitor to the back hitch of the car connecting with the spring part of the suzie cable and a 15m cable that runs from the spring connection to the camera on the back of the caravan. The spring section is the part that is unplugged when not towing the caravan.  The cable lengths that come with the Suzie Cable can be changed by selecting the lengths that you require by clicking on the drop-down box "Suzie Cables".