We offer almost every cable for every surveillance camera. Most surveillance cameras are just fine with our pre-made molded cables if the length is not more than 100 ft. Our normal cable provides power and video to and from the camera. When we use the term "Siamese Cable" we actually refer to our higher grade cable which consists of RG59 for video and 18 gauge 2 wire for power. We offer this in 500 ft and 1000 ft spools. We also offer this as an option by the foot on certain high powered cameras that require more than the prefab cables to operate properly. Our Super 48 led (light emitting diode) cameras will not power properly on pre-fab cables longer than 50 ft. Technically, even our prefabricated molded ends power video cable is considered Siamese since Siamese refers to 2. The difference is the pre-mades are not RG59 for video and not 18 gauge for power.