Required to join two BNC cables together. - (THe power is male to female and will interconnect on it's own). This is required if you buy a 18 Metre cable and wish to join to and exisitng 18 Metre /..

Swann HD Video & Power 200ft / 60m BNC Cable Easy to connect extension cable to suit Swann Pro-Series HD Security Systems (including TVI 4500 series)Add 200ft / 60m of distance to your security s..

18M Suits up to 5 Megapixel AHD cable combining both Data and Power.(Requires BNC Joiner to be used as a cable extension. ) This is the same type that comes in AHD DVR Kits. (This is not for N..