GW Security Premade 1 x 100 feet Siamese CCTV Coaxial Cable RG59 Combo Cable for Connecting HD-SDI Camera System with BNC Connector and 2.1mm Power Connector (Black) Perfect connection with no interference or quality decrease for all security cameras. Special made for HD-SDI and HD-CVI Cameras Professional Grade for 700TVL, 1000TVL, 1200TVL, HD-CVI, HD-AHD, HD-TVI, HD-SDI Cameras.