Extends a shorter cable to a longer length by adding 100ft/30m of distance to your NVR security camera Power, video and audio runs through a single high performance Ethernet cable per camera making installation simple Certified by UL with a VW-1 rating for fire resistance to ensure optimal safety use and durability Compatible with all Swann Security network video recorders (NVRs) Includes easy to connect premium VW-1 & FT1 rated ethernet cable 100ft/30m and a RJ45 extension adapter