Siamese cables give you the power to centralize your video and power distribution for your CCTV systems, and allows for more flexible placement of your security cameras. RG59 has long been the standard for video distribution cabling that is both affordable and reliable. The RG59 coaxial cable consists of a center conductor, dielectric and two forms of shielding, an aluminum foil shield and a 95% braided wire shielding to protect your signal from EMI. The 500 foot cables come in a manageable size on a convenient reel in a pull box, maximizing the ease and flexibility of getting your installation right.