1000 ft Plenum White RG59 Siamese Coaxial + 18 / 2 Power Cable Reel-in box. Siamese cable consists of two cables: 95 % coverage RG59U video cable and 2 conductor 18 gauge electrical cable all in one PVC jacketed cable. This type cable is great for use with CCTV equipment. All the wires you need to connect your camera are with in one cable. Therefore eliminating the need for two separate cables for the power and video. This cable is easy to run and it will look more esthetic when the installation is complete. It will also save you a considerable amount of time during installation. Please note: If you need BNC Twist-On Male Connectors, please refer to here: http://www.amazon.com/gp/product/B00JBIHZXW The CMP connectors can perfectly fit with this ETL Listed CMP-Rated RG59/U + 18AWG/2C Power Plenum Siamese Cable.