Do you want to install one of the exterior cameras or the 4th camera on the back of your trailer or 50-90 feet from the MDVR?
You can add this retractable 8 ft 4 Pin Cable for MDVR.
Retracts up to 30 ft
4 PIN Heavy Duty cable.
SD Card Reader for Phones/Tablet! Transfer Video to Phone/Tablet in Seconds
64GB MicroSD Card
128GB MicroSD Card
MicroSD 200GB Card with Adapter - Class 10 High Speed