Expand your surveillance with this 4 pack of 100ft CAT5e in-wall rated extension cables for high definition NVR IP security systems. Why do you need UL certified cabling? Safelyinstall cabling inside walls/ceilings and be in compliance with NEC (National Electric Code) standards. Helps preventfires from spreading due to special cable jacket material. Complieswith insurance company requirements. Row 2 # OF CAMERAS How can you be sure it is UL certified? Regular inspectionsof the cable content by UL certification body Compliance markadded to each cable identifying UL certification details. In-Wall, Between Floors This cable meets or exceeds UL / cUL communication cable standards for a CMR (Riser) rating. This means that it can be safely run between walls, allowing you to hide them from view and maximize their distance. You can also run Riser cables safely between floors that do not circulate environmental air for heating or conditioning systems. Fire Resistant The cable jacket material prevents the spread of fire. They must pass a vertical burn test to ensure that the flame will not move along the cable.  Understanding PoE Technology  Extension Cables for Security Systems  Security Camera Cables and Ratings Â