DSC Technology, DSC-CW500FCC 500 Feet Siamese Cable w/RG-59 & 2 Copperwires for Power (Black Color)) 500' of RG59 + Power Siamese Cable. (Black Color) Great for surveillance, BNC connections. 18 AWG Gauge (power) and 20 AWG (RG59). CM Jacket (in-wall installation approved). 95% Copper Braid Shielding.